The ratio of ducks and frogs in a pond is 35 : 43 respectively. The average number of ducks and frogs in the pond is 234. How many ducks are there in the pond?
Ratio of ducks and frogs in a pond = 35 ? 43
Let, number of ducks = 35x and no. of frogs = 43x
According to problem,
⇒ (35x + 43x)/2 = 234
⇒ 78x = 234 × 2
⇒ x = 6
∴ The number of ducks in the pond = 35x = 35 × 6 = 210