Question

Alex has ₹100. He spends 3/10 of it on candies. He spends one-seventh of what's left on colour pencils. How much money is Alex left with?

Answer 1

Answer

First, we should find the money that was spent on buying candies.

Money spent on buying candies :

${\sf \dashrightarrow \dfrac{3}{10} \: of \: 100}$

${\sf \dashrightarrow \dfrac{3}{10} \times 100}$

${\sf \dashrightarrow \dfrac{3 \times 100}{10} = \dfrac{300}{10}}$

${\sf \dashrightarrow \cancel \dfrac{300}{10} = 30}$

Money left over :

${\sf \dashrightarrow 100 - 30}$

${\sf \dashrightarrow 70$

Money spent on buying color pencils :

$\dashrightarrow \dfrac{1}{7} \: of \: 70$

${\sf \dashrightarrow \dfrac{1}{7} \times 70}$

${\sf \dashrightarrow \dfrac{1 \times 70}{10} = \dfrac{70}{10}}$

${\sf \dashrightarrow \cancel \dfrac{70}{10} = 7}$

Now, we can find money that is left with Alex.

Money left with Alex :

${\sf \dashrightarrow 70 - 7}$

${\sf \dashrightarrow 63}$

So, the money left with Alex after buying candies and color pencils is ₹63.

Answer 2

Answer:

60

Step-by-step explanation:

Total= 100

First Alex spends= 3/10 of 100

= 3/10*100

=30

Money left= 100-30

                 = 70

Money Alex spends from the remaining= 1/7 of 70

                                                                  =10

Total money spent= 30+10

                               =40

Therefore money left is= 100-40

                                      = 60