Question

Give me a helping hand plz

Answer 1

Step-by-step explanation:

Ratio of heart beats of Ali & Ben is 15:17,

LET THE VALUES OF HEART BEATS PER MINUTE BE x,

A.T.Q

$17x - 15x = 18 \\ ⇒2x = 18 \\ ⇒x = \frac{18}{2} = 9$

ALI'S HEART BEAT : 15 × 9= 135 TIMES PER MINUTE

135