# SBI Clerk Numerical Ability Model Set I

(21) Two numbers are in the ratio of 3:4. If 5 is subtracted from each, then the ratio will be 2:3 what is the smallest number?

(a) 23

(b) 17

(c) 15

(d) 10

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Answer: c

(22) The average age of 8 men is increased by 2 yr when two of them whose age are 21 and 23 yr are replaced by two new men. The average of the two new men is

(a) 43

(b) 28

(c) 30

(d) 32

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Answer: c

(23) How much simple interest will Rs. 2000 earn in 18 months at an annual rate of 6%?

(a) Rs. 180

(b) Rs. 150

(c) Rs. 200

(d) Rs. 170

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Answer: a

(24) Which of the following number is a prime?

(a) 861

(b) 331

(c) 667

(d) 481

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Answer: b

(25) Rs. 5000 earned Rs. 300 interest in 2 yr. The rate of interest is

(a) 5%

(b) 10%

(c) 4%

(d) 3%

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Answer: d

(26) What the seller marked the printed price of a watch purchased at Rs. 380, so that giving 5% discount there is 25% profit?

(a) 600

(b) 400

(c) 550

(d) 720

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Answer: b

(27) The mess charges for 35 students for 24 days in Rs. 6300. In how many days will the mess charges be Rs. 3375 for 25 students?

(a) 23

(b) 32

(c) 18

(d) 10

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Answer: c

(28) The wooden box measure 20 cm x 12 cm x 10 cm. Thickness of wood is 1 cm. The volume of wood to make the box (in cubic cm) is

(a) 760

(b) 960

(c) 650

(d) 880

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Answer: b

(29) The monthly income of A and B are in the ratio 4:3 . Each of them saves Rs. 600. If the ratio of their expenditure is 3:2, then what is the monthly income of A?

(a) Rs. 3400

(b) Rs, 1300

(c) Rs, 2000

(d) Rs. 2400

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Answer: d

(30) (6.5 x 6.5 – 45.5 + 3.5 x 3.5 ) is equal to

(a) 10

(b) 4

(c) 9

(d) 7

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Answer: c