Question

Find the answer of the question 2a by completely solving it

Answer 1

Heya dear user !!!

Here is your answer,

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Let,
number of prizes for discipline = x
number of prizes for politeness = 5x/6
number of prizes for punctuality = 5x/6 * 4/5 = 2x/3

.
According to the question
$x + \frac{5x}{6} + \frac{2x}{3} = 15 \\ \\ \\ \frac{6x + 5x + 2x}{6} = 15 \\ \\ \\ \frac{15x}{6} = 15 \\ \\ \\ x = 15 \times \frac{6}{15} \\ \\ \\ x = 6$

So,
number of prizes for discipline = x = 6

number of prizes for politeness = 5/6 × 6 = 5

number of prizes for punctuality = 2/3 × 6 = 4

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Hope it helps.