Question

1)If a b = 7:8 and b:c is 4:5, find the value of i) a:b:c ii) a:c 2)Divide Rs 65,000 in the ratio 1/2:1/3:1/4​

Answer 1

1.

A:B=5:6

So,

AB= \frac{5}{6}

A= \frac{5b}{6}

B:C=4:7

So,

\frac{c}{b} =74

C= \frac{4b}{7}

From (1) and (2),

A:B:C = \frac{5b}{6} :B: \frac{4b}{7}

=65:1:47

=10:12:21

2.

The ratio in which Rs 715 is to be divided is 6:4:3.

So, we have 13x=715 or x=55

So, 6x will be Rs. 330

3x will be Rs 165 and 4x is Rs 220.

Answer 2

Answer:

1) (i) a:b:c = 14:16:20 (ii) a:c = 7:10

2) 1/2:1/3:1/4 = 6:4:3

6/13×65000= 30000, 4/13×65000= 20000, 3/13×65000 = 15000

Explanation:

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