# SBI Clerk Numerical Ability Model Set I

(1)If the length and breadth of a rectangle are increased by 10% and 20% respectively, What wioll be the effect on its area?

(a) 32% increase

(b) 20% increase

(c) 27% increase

(d) None of the above

(2) A 220 metre long train crosses a 260 meter long platform in 24 seconds. What is the speed of train in kmph?

(a) 45

(b) 76

(c) 72

(d) 55

(3) The average marks obtained by Sunil in Mathematics and Science are 85 and that in that is Mathematics and English are 72. What marks did he get in Mathematics?

(a) 78

(b) 87

(c) 93

(d) Cannot be determined

(4) 2  4  11  ?  153  771

(a) 54

(b) 37

(c) 23

(d) 66

(5) If 7 : x = 17.5 : 22.5 , then x = ?

(a) 48

(b) 65

(c) 32

(d) 40

(6) The length of a train and that of a platform are equal. If with a speed of 90 km/h, the train crosses the platform in 1 min, then the length of the train (in m) is

(a) 840

(b) 580

(c) 750

(d_ 550

(7) The ratio of the outer and the inner perimeter of a circular path is 23 : 22 . If the path is 5 m wide, the diameter of the inner circle is

(a) 340 m

(b) 144 m

(c) 80 m

(d) 220 m

(8) Sum of digits of the smallest number by which 1440 be multiplied so that it becomes a perfect cube , is

(a) 7

(b) 6

(d) 8

(d) 4

(9) The cost price of 36 books is equal to the selling price of 30 books. The gain is

(a) 40%

(b) 25%

(c) 20%

(d) 10%