RRB NTPC | CBT Stage 1 | Mathematics | Miscellaneous Problems
Miscellaneous Problems
1. The H.C.F of two numbers is 96 and their L.C.M is 1296. If one of the number is 864, the other number is?
a) 132
b) 135
c) 140
d) 144
2. The ratio of the ages of two boys is 3:4. After 3 years, the ratio will be 4:5.The ratio of their ages after 21 years will be?
a) 14:17
b) 17:19
c) 11:12
d) 10:11
3. One number is 25% of another number. The larger number is 12 more than the smaller. The large number is?
a) 48
b) 16
c) 4
d) 12
4. The perimeter of a square is 176 m. Area of a rectangle is 584 sq. m more than the area of the given square. If the breadth of the rectangle is 45 m, what is its perimeter? (in m)
a) 302
b) 192
c) 202
d) 204
5. Of the three numbers the average of the first and second number is greater than the average of the second and the third number by 38. What is the difference between the first and the third number?
a) 66
b) 72
c) 86
d) 76
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