A reduction of 20% in the price of an apple enables a man to buy 10 apples more for ₹ 54. The reduced price of apple per dozen is

• ₹ 4.32

• ₹ 12.96

• ₹ 10.80

• ₹ 14.40

Price of a commodity has increased by 60%. By what percent must a consumer reduce the consumption of the commodity so as not to increase the expenditure?

• 37

• 37.5

• 40.5

• 60

103.

The cost of an apple is twice that of a banana and the cost of banana is 25% less than that of a guava. If the cost of each type of fruit increases by 10%, then the percentage increase in cost of 4 bananas, 2 apples and 3 guavas is

• 10%

• 12%

• 16%

• 18%

Walking 6/7 of his usual speed, a man is 12 min too late. The usual time taken by him to cover that distance is

• 1 hr

• 1 h 12 min

• 1 h 15 min

• 1 h 20 min

If I walk at 5 km/h, I miss a train by 7 min. If, however, I walk at 6 km/h, I reach the station 5 min before the departure of the train. The distance (in km) between my house and the station is

• 6

• 5

• 4

• 3

₹ 800 becomes ₹ 956 in 3 yr at a certain rate of simple interest. If the rate of interest is increased by 4%. What amount will ₹ 800 become in 3 yr?

• ₹ 1020.80

• ₹ 1025

• ₹ 1052

• ₹ 1050

Simple interest on a certain sum is 16/25 of the sum. The rate of per cent, if the rate per cent and time (in yr) are equal to

• 6%

• 8%

• 10%

• 12%

If the difference between SI and CI for 2 yr on a sum of money lent at 5% is ₹ 6, then the sum is

• ₹ 2200

• ₹ 2400

• ₹ 2600

• ₹ 2000

A hemisphere and a cone have equal bases. If their heights are also equal, the ratio of their curved surfaces will be

• 

• 

• 1 : 2

• 2 : 1

If  the value of 5x² - 5x - 1 is

• 0

• 3

• 4

• 5