Ratio between Males who use their coupon in Pedicure to that of in Spa is 4 : 5, while ratio between Females who use their coupon in Haircutting to that of in Spa is 6 : 11. Find total number of people who use their coupons in Spa?

Let, Males and females who use their coupons in Haircutting be 13x and 7x respectively. ⇒ Males who use their coupons in Pedicure = 7x+72 Then Females who use their coupons in Pedicure = 450−13x−7x−7x−72=378−27x / ATQ, 7x+72+13x−(7x+378−27x)=174 40x–306=174 40x = 480 X =12 /

Males who use their coupons in Spa

$= 156 imes frac{5}{4} = 195$

Females who use their coupons in Spa

$= 84 imes frac{{11}}{6} = 154$

Total number of people who use their coupon in Spa = 195+154=349