type 3 addition subtraction product on ratio & proportion Section-Wise Topic Notes With Detailed Explanation And Example Questions

Question : 1

The ratio between a two - digit number and the sum of the digits of that number is 4 : 1. If the digit at the unit’s place is 3 more than the digit at the ten's place, then the number is

a) 36

b) 25

c) 69

d) 47

Question : 2

The ratio of two numbers is 3 : 8 and their difference is 115. The smaller of the two numbers is :

a) 69

b) 59

c) 194

d) 184

Question : 3

If the product of two positive numbers is 1575 and their ratio is 7 : 9, then the greater number is

a) 135

b) 63

c) 35

d) 45

Question : 4

The sum of three numbers is 68. If the ratio of the first to the second be 2 : 3 and that of the second to the third be 5 : 3, then the second number is

a) 20

b) 48

c) 58

d) 30

Question : 5

Three numbers are in the ratio 5:7:12. If the sum of the first and the third numbers is greater than the second number by 50. The sum of the three numbers is

a) 95

b) 85

c) 120

d) 125

Question : 6

Four numbers are in the ratio 1 : 2 : 3 : 4. Their sum is 16. The sum of the first and fourth number is equal to :

a) 10

b) 80

c) 8

d) 5