•  320 
• 160
• 80
• 80

Table shows the daily expenditure on food of 25 households in a locality: Rs. 100-150 150-200 200-250 250-300 300-350 Households 4 5 12 2 2
The mean daily expenditure on food is

• Rs. 111

• Rs. 161

• Rs. 211

• Rs. 211

A box contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is 2/3. The number of blue balls in the jar is

• 13

• 12

• 16

• 16

The population of a city is 250 thousand. It is increasing at the rate of 2% every year. The growth in the population after 2 years is

• 2500

• 10000

• 252000

• 252000

Sum of first 15 multiples of 8 is

• 960

• 660

• 1200

• 1200

A rod of 2 cm diameter and 30 cm length is converted into a wire of 3 meter length of uniform thickness. The diameter of the wire is

• 2/10 cm

• 2/√10 cm

• 1/√10 cm

• 1/√10 cm

If 0.06% of a number is 84, then 30% of that number is

• 25.2

• 420

• 42000

• 42000

A sum was divided among P, Q & R. R got double than P who got double than Q. If the difference between the shares of Q and R is Rs. 3675.00, then the sum in rupees is

• 4900

• 8575

• 11025

• 11025

The denominator of a fraction is greater than its numerator by 11. If 8 is added to both its numerator and denominator, then it becomes ¾. The fraction is

• 25/26

• 35/26

• 26/35

• 26/35

10.

The value of 1/x² + 1/y² where x= 2 +√3 and y = 2 - √3, is

• 12

• 16

• 14

• 14