Question

A students on vacation for $d$ days observed that $\left(1\right)$ it rained $7$ times, morning or afternoon $\left(2\right)$ when it rained in the afternoon, it was clear in the morning $\left(3\right)$ there were five clear afternoons $\left(4\right)$ there were six clear mornings. Then $d$ equals.

• A. $7$
• B. $9$
• C. $10$
• D. $11$
• E. $12$

Answer 1

The correct option is B $9$

Given,

it rained $7$ times

there were $5$ clear afternoons

there were $6$ clear mornings

Then d equal $=\frac{(5+6)+7}{2}=\frac{18}{2}=9$

Therefore a total of $9$ days of vacation