Problems on Numbers

More Topic from Elementary Mathematics

Question 1

120 men had food provision for 200 days. After 5 days, 30 men died of an epidemic. The food will last for further

  • 280 days

  • 260 days

  • 290 days

  • 252 days

Solution

B.

260 days

Question 2

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

  • 8

Solution

D.

8

Question 3

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

Solution

B.

2/√10 cm

Question 4

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

  • 7350

Solution

B.

8575

Question 5

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

  • 25.2

  • 420

  • 42000

  • 2520

Solution

C.

42000

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