Question

10. Roshni used to put all the money she got from her parents and grandparents during festivals
to her "Plogy Bank". She was always very fond of saving money. Once she thought of buying a
doll for her cute sister. She guessed she had enough money in her Piggy Bank. So one day she
broke it open. She found that she had only two types of coins in it; coins of 5 and 10 rupees. If
she had'm' coins of Rs.5 and 'n' coins of Rs.10, then answer the following:
(a). Write an expression which shows the total amount she had in her Piggy Bank,
(b). If her brother too had saved 'm' coins of Rs 2 and 'n' coins of Rs.5, then write an
expression which shows the total amount he had
(cAc Roshni was a little short of moneushe was unset Her brother offered to heln hy​

Answer 1

Answer:

a. She would hve 5×m coins and 10×m coins in her "Plogy Bank"

b. He would hve 2×m coins and 5×m coins

Step-by-step explanation:

It was easy u just need to apply your brain

Answer 2

a) $5m + 10 n = x$

b) $2m + 5n =y$

Step-by-step explanation:

a. The total money Roshni had$(x)$ can be written as $5m + 10 n = x$

• Five multiplied by m will give the money she has in the form of 5 rupee coins and  
• 10 multiplied by n will give the money she has in the form of 10 rupees.  
• When both are added, we get the total money, she has.

b. In a similar way we can write the expression for her brother.

Let, the total money the brother has be $y$

$2m + 5n =y$