The price of commodity X increases by 40 paise every year, while the price of

commodity Yincreases by 15 paise every year. If in 2001, the price of commodity X was

Rs. 4.20 and that ofY was Rs. 6.30, in which year commodity X will cost 40 paise more

than the commodity Y

• 2010

• 2011

• 2013

• 2012

There are two examinations rooms A and B. If 10 students are sent from A to B, then the

number of students in each room is the same. If 20 candidates are sent from B to A, then

the number of students in A is double the number of students in B. The number of

students in room A is:

• 20

• 80

• 100

• 200

If a - b = 3 and a

2

+ b

2

= 29, find the value of ab.

• 10

• 12

• 15

• 18

The product of two numbers is 120 and the sum of their squares is 289. The sum of the

number is:

• 20

• 23

• 169

• None of these

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are

allowed respectively in their salaries, then what will be new ratio of their salaries?

• 3 : 3 : 10

• 10 : 11 : 20

• 23 : 33 : 60

• Cannot be deyermined

A and B entered into partnership with capitals in the ratio 4 : 5. After 3 months, A

withdrew of his capital and B withdrew of his capital. The gain at the end of 10

months was Rs. 760. A's share in this profit is:

• 330

• 360

• 380

• 430

A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do

it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to

be paid to C?

• 375

• 400

• 600

• 800

A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26

seconds. What is the length of the goods train?

• 230 m

• 240 m

• 260 m

• 270 m

If log10 2 = 0.3010, then log2 10 is equal to

• 699

• 1000

• 0.3010

• 0.6990

An error 2% in excess is made while measuring the side of a square. The percentage of

error in the calculated area of the square is:

• 2 %

• 2.02 %

• 4 %

• 4.04 %