Question

In a boarding school of 80 boys, there was food provision for 30 days. The boys helped 20 more orphan boys of the locality to share the provision.
i. How long did the food provision last?​

Answer 1

Answer:

24days

Step-by-step explanation:

Days of Food left  for one boy = 80*30

Now,there are total 100 boys

So, Food provision will last (80*30)/100days

ANS:24 days

Answer 2

Answer:

24 days ....

Step-by-step explanation:

${ \huge{ \textsf{ \purple{\underline{Given - - - - > }}}}}$

80 boys ----------- 30 days provision

+20

= 100 boys-----------? days

${ \huge{ \textsf{ \orange{\underline{variation - - - > }}}}}$

• indirect variation
• under this kind of variation the value "x" and "y" vary inversely
• example if x increases y will decrease and if y increases X will decrease.

${ \huge{ \textsf{ \blue{\underline{operations - - > }}}}}$

$\frac{80 \times 30}{100}$

= 24 days

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