Question

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Answer 1

1.Given,

$\frac{y}{3} = 11$

$= >y = 11 \times 3 = 33$

2.(a) Let the required number be a.Then

=> 4a = 64

(b).Let the number be x and y.Then,

=> x - y =9

(3). No m is not equal to 8.

Reason: Putting m = 8 ;we get

$2 \times 8 = 16$

But it is given that 2m = 18.

(4). We know that 1L = 1000ml

Hence, ratio of 1L to 200ml

$= > \frac{1000}{200}$

=>5:1

(5). Given,

Present age of Sushma =10 yrs.

=>Age five years ago = 5yrs.

Age of her mother = 45yrs

=>Age five years ago = 40yrs.

$their \: age \: ratio \: = \frac{5}{40}$

=>1:8

(6).

Given,

Cost of 20 kg rice = Rs.700

=> Cost of 1 kg = Rs. (700/20)

=>Rs. 35.

Then cost of 15kg =Rs. (15*35)

=>Rs.525