Showing Mcqs of math -- (543)

 Ten years ago A was half of B in age. If the ratio of their present ages is 3: 4, what will be the total of their present ages?

8yrs

10yrs

33yrs

35yrs

Kiran got married 6 years ago. Today her age is 1 1/4 times her age at the time of marriage. Her son's age is son's age is: 1/10 times her age. Her sons age is :

2yrs

3yrs

4yrs

5yrs

The average age of five members of a family is 21 years. If the age of the grandfather be included, the average is increased by 9 years. The age of the grandfather is:

72yrs

66yrs

75yrs

80yrs

The average age of an adult class is 40 years. Twelve new students with an average age of 32 years join the class, thereby decreasing the average of the class by 4 years. The original strength of the class was:

10

11

12

15

 The simplification of 0.8×0.8×0.8-0.5×0.5×0.5 / 0.8×0.8+0.8×0.5+0.5×0.5 gives

0.8

0.3

0.4

0.13

Which of the following fractions is less than 7/8 and greater than 1/3 

1/4

23/24

11/12

17/24

How many 1/8 are there in37 1/2?

300

400

500

none of these

          [2 3/x] *[y1/2] =7 3/4, find the values of x and y

(3,19)

(3,14)

(14,3)

(24,6)

When 1/4 of a number is subtracted from 1 /3 the remainder obtained is 12. The number is

144

72

60

120

There are four prime numbers written in ascending order. T product of the first three is 385 and that of the last three is 1001 Find the first number

5

7

11

17