Ashikmathur

[ashokmathur]

CBSE

CBSE  Maximum Profit : An automobile manufacturer can produce up to 300 cars per day. The profit made from the sale of these vehicles can be modelled by the function P(x)=−x2+350x−6600 where P(x) is the profit in thousand Rupees and x is the number of automobiles made and sold. Answer the following questions based on this model: (i) When no cars are produce what is a profit/loss? (ii) What is the break even point ? (Zero profit point is called break even) ? (iii) What is the profit/loss if 175 cars are produced ? (iv) What is the profit if 400 cars are produced? Sol :

[ashokmathur]

CBSE

CBSE  Class 10  English  Explain the given statement with reference to Nelson Mandela's dreams. “A winner is a dreamer who never gives up.” (Nelson Mandela - Long Walk to Freedom

[ashokmathur]

Heredity and Evolution

Heredity and Evolution  A Pea plant can have smooth seeds or wrinkled seeds. One of the phenotypes is completely dominant over other. A farmer decides to pollinate one flower of a plant with smooth seeds using pollen from plant with wrinkled seeds. The resulting pea pod has all smooth seeds.Now answer the question based on the information given. Which of the following crosses will give smooth and wrinkled seeds in same proportion?

[ashokmathur]

Science Class 10

Science  Class 10  Assertion (A): Mendel chose a number of varieties of garden pea as plant material for his experiments. Reason (R): Garden pea has well defined characters and is bisexual.

[ashokmathur]

Class 10 CBSE Mental ability

Class 10  CBSE  Mental ability  Read the text carefully and answer the questions: [4] Akshat's father is planning some construction work in his terrace area. He ordered 360 bricks and instructed the supplier to keep the bricks in such as way that the bottom row has 30 bricks and next is one less than that and so on. The supplier stacked these 360 bricks in the following manner, 30 bricks in the bottom row, 29 bricks in the next row, 28 bricks in the row next to it, and so on. (i) In how many rows, 360 bricks are placed? (ii) How many bricks are there in the top row? If which row 26 bricks are there? OR (iii) How many bricks are there in 10th  row?

[ashokmathur]

Class 10 Mathematics CBSE

Class 10 Mathematics CBSE Two concentric circles are centered at O(−4,3). The ratio of the area of inner circle to that of t outer circle is 1:9. Points A and B lie on the boundaries of the inner and outer circle, respectively, as shown below. (Note: The figure is not to scale.) The coordinates of point B are (3,5). Which of the following are the coordinates of A ? A) (32​,313​) B) (3−5​,311​) C) (4−9​,414​) D) (10−33​,516​)

[ashokmathur]

Science

Class 10 Science, Heredity And Sex Determination, Heredity and Evolution  Assertion (A): Mendel chose a number of varieties of garden pea as plant material for his experiments. Reason (R): Garden pea has well defined characters and is bisexual.

[ashokmathur]

Mathematics

Mathematics  Heights And Distances   Some Application of Trigonometry  Class 10  The length of a string between a kite and a point on the ground is 85 m. If the string makes an angle θ with the ground level such that tanθ=15/8 then find the height of the kite from the ground. Assume that there is no slack in the string.

[ashokmathur]

Class 10

Class 10  Science  Heredity and Evolution  Explanation Of The Results Of Monohybrid Inheritance  A Pea plant can have smooth seeds or wrinkled seeds. One of the phenotypes is completely dominant over other. A farmer decides to pollinate one flower of a plant with smooth seeds using pollen from plant with wrinkled seeds. The resulting pea pod has all smooth seeds.Now answer the question based on the information given. Which of the following crosses will give smooth and wrinkled seeds in same proportion?

[ashokmathur]

CBSE Class 10 Mathematics

CBSE  Class 10  Mathematics  A vicket machine in a car park takes ₹ 1 coin and ₹2 coin A ticket cost ₹ 3 . The probability that the machine will accept a particular ₹1 coin is 09 and that it will accept a particular ₹2 coin is 0.8 On the basis of the above information, answer the following questions: (A) Find the probability that jayant will not get a ticket. (B) Pritam has one ₹1 coins and two ₹2 coins. Find the probability that Pritam will get a ticket. (C) Urmila put one ₹1 coin and one ₹ 2 coin into the machine. Find the probability that the machine will not accept either of these coins. OR Jayant only has three ₹1 coins. Find the probability that the machine accept all these coins. Also find the probability that the machine will not accept a particular ₹ 1 coin. 2

[ashokmathur]

CBSE

CBSE  A vessel having 30 m3 of water is emptied through two openings, one small and the other large. Water flows out through the smaller opening at the rate of U m3/h and through the larger one at the rate V m3/h. Given that 3U+2 V=70 and that the vessel gets fully emptied in 1 hour, what is V? (A) 10 m3/h (B) 20 m3/h (C) 30 m3/h (D) 50 m3/h A.1 U [CBSE, Q.B., 2021-2022]

[ashokmathur]

Class 10 Science Heredity and Evolution

Class 10  Science  Heredity and Evolution,Class 10 Science Heredity and Evolution  A Pea plant can have smooth seeds or wrinkled seeds. One of the phenotypes is completely dominant over other. A farmer decides to pollinate one flower of a plant with smooth seeds using pollen from plant with wrinkled seeds. The resulting pea pod has all smooth seeds.Now answer the question based on the information given. Which of the following crosses will give smooth and wrinkled seeds in same proportion?

[ashokmathur]

CBSE Class 9 Science Physics

CBSE Class 9 Science Physics  An electric egg boiler of 100Ω, an electric heater of resistance 150Ω and an iron of resistance 450Ω are connected in parallel to a 220 V source. What is the resistance of an electric toaster connected to the same source that consumes as much as current as all three appliances? Also calculate the current flowing through it.

[ashokmathur]

CBSE

CBSE  Class 10 Mathematics  The graph of a polynomial p(x) passes through the points (−5,0),(0,−40),(8,0) and (5,−30). Which among the following is a factor of p(x) ? A) (x−5) B) (x−8) C) (x+30) D) (x+40)

[ashokmathur]

CBSE

CBSE  Explain the given statement with reference to Nelson Mandela's dreams. “A winner is a dreamer who never gives up.” (Nelson Mandela - Long Walk to Freedom

[ashokmathur]

CBSE

Read the text carefully and answer the questions: [4] Akshat's father is planning some construction work in his terrace area. He ordered 360 bricks and instructed the supplier to keep the bricks in such as way that the bottom row has 30 bricks and next is one less than that and so on. The supplier stacked these 360 bricks in the following manner, 30 bricks in the bottom row, 29 bricks in the next row, 28 bricks in the row next to it, and so on. (i) In how many rows, 360 bricks are placed? (ii) How many bricks are there in the top row? If which row 26 bricks are there? OR (iii) How many bricks are there in 10th  row?

[ashokmathur]

Class 10

Class 10  Maximum Profit: A kitchen utensils manufacturer can produce up to 200 utensils per day. The profit made from the sale of these utensils can be modelled by the function P(x) = - 0.5x² + 175x - 3300 , where P(x) is the profit in Rupees, and x is the number of utensils made and sold. Based on this model, (iii) How many utensils should be sold to maximize profit? (ii) Find the x-intercepts and explain what they mean in this context. (i) Find the y-intercept and explain what it means in this context.