Question

2/3 of the students in a class are boys and the rest are 17 girls. 3 (i) How many boys are there in the class? (ii) What is the total strength of the class?

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Answer 1

Answer:

means 1/3 are girls

So, 1/3 = 17.

2/3 = 1/3 + 1/3 = 17 + 17

= 34 boys are in the class.

total strength of class = 17 + 34

=51

Answer 2

Answer:

(i) 34

(ii) 51

Step-by-step explanation:

(ii) Solution working

= Let x be the total strength of the class

=> No. of  boys= 2x/3 ; No. of girls= 17

=> x= (2x+51)/3

=> 3x= 2x+51

=> 3x-2x= 51

=> x=51

=> (i) No. of boys= 2/3 of 51

                       = 34

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