Elementary Mathematics : Problems on Numbers

One-third of one fourth of a number is 12. Then the number is

• 96

• 144

• 108

• 108

In the number series 4,10,23,50,104,216,439 the wrong number is

• 10

• 23

• 104

• 104

The price of 2 trousers and 4 shirts is Rs. 1,600. With the same amount one can buy 1 trouser and 6 shirts. If one wants to buy 12 shirts, he has to pay

• Rs. 2400

• Rs. 4800

• Rs. 1200

• Rs. 1200

If x= (3/2)² (2/3)^-4 the value of x^-2 is

• (2/3)¹²
  

• (3/2)¹² 

• (6/2)^-12

• (6/2)^-12

The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other, the numbers are

• 1411 and 1079

• 1412 and 1080

• 1141 and 1709

• 1141 and 1709

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

• 290 days

Out of the total income, X spends 20% on house rent and 70% of the remaining amount on household expenditure. If X saves Rs. 1800, the total income is

• Rs. 8000

• Rs. 9500

• Rs. 7500

• Rs. 7500