Question

please answer 10th question​

Answer 1

Answer:

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Answer 2

Answer: Happy Rakshabandhan to you ;

assume the number is y

then this student multplied y with 4/3 instead of dividing it with 4/3

And he got the answer is 70 more than the correct answer..

Now you have to know that multiplication with 3/4 is the same as division with 4/3 [reciprocal].

4/3y = 70/1 + 3/4 y

you can also say that = 70 = 4/3 y - 3/4 y

take out LCM ;

70 = 16y - 9y/ 12

70 = 7y/12 [eg: 5 = 15/3]

7y = 70 x 12 [eg: 15 = 5 x 3 ]

7y = 840....

y= 840/7

y = 120