Question

a dozen identical books are stacked one above the other to a height of 72cm . if 5 books are more added to the stack, then height of the stack becomes 'h'cm. then find the sum of digit of h/3.
a) 3 b)7 c)102 d)34​

Answer 1

Answer:

C) 102

Hope it is helpful

Answer 2

The sum of digit of h/3 is 7

Step-by-step explanation:

We are given that a dozen identical books are stacked one above the other to a height of 72cm  

So, Height of stack of 12 books = 72 cm

Height of 1 book = $\frac{72}{12}=6$

5 books are more added to the stack then height of the stack becomes 'h'cm

So, Total books = 12+5 = 17

Height of stack of 17 books = 6 \times 17 = 102

So, h = 102

So, $\frac{h}{3} =\frac{102}{3}=43$

So, Sum of digits of h/3 = 43=4+3=7

Hence the sum of digit of h/3 is 7

#Learn more :

A dozen identical books are stacked one above the other to a height of 48 cm. If 3 more books are added to the stack, then the height of the stack will become : a. 62cm b. 52cm c. 0cm d. 57cm

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