51.

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?

• 2

• 4

• 6

• 8

A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6 days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

• 10 days

• 12 days

• 14 days

• 16 days

A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm²) in the total surface area?

• 289 cm²

• 361.5 cm²

• 481.25 cm²

• 962.5 cm²

After a discount of 34% an article is sold for ₹ 3,168/-. What is the marked price (in ₹) of the article?

• ₹ 4,750/-

• ₹ 4,800/-

• ₹ 4,850/-

• ₹ 5,000/-

If   then what is the ratio of P and Q respectively?

• 12 : 77

• 12 : 33

• 28 : 33

• 3 : 28

The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?

• 39

• 78

• 117

• 156

For an article the profit is 170% of the cost price. If the cost price increases by 20% but the selling price remains same, then what is the new profit percentage?

• 41%

• 50%

• 75%

• 125%

32% of a number exceeds 17% of the same number by 120. What is the value of the number?

• 900

• 860

• 940

• 800

A boat goes 15 upstream and  downstream in 3 hours 15 minutes. It goes 12 km upstream and 14  km downstream in 3 hours. What is the speed of boat in still water.

• 4 km/hr

• 6 km/hr

• 10 km/h

• 14 km/hr

A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to ₹ 250/- less than the sum lent. What was the sum lent (in ₹)?

• ₹ 1,000/-

• ₹ 1,500/-

• ₹ 2,400/-

• ₹ 3,000/-