Practice30Create account

A fish tank holds 15 goldfish and 25 guppies. Which statement is correct?

Class 6Ratio and ProportionRatio and Proportion
  • AGoldfish to guppies is 3 : 8, and goldfish to all the fish is 3 : 5
  • BGoldfish to guppies is 3 : 5, and goldfish to all the fish is 3 : 5
  • CGoldfish to guppies is 3 : 5, and goldfish to all the fish is 3 : 8
  • DGoldfish to guppies is 5 : 3, and goldfish to all the fish is 8 : 3

Step-by-Step Solution

Part to part: goldfish : guppies = 15 : 25 = 3 : 5. Part to whole: the tank holds 15 + 25 = 40 fish, so goldfish : all fish = 15 : 40 = 3 : 8. Giving the same ratio for both, or swapping the two, is the usual slip — check whether the second quantity is the OTHER part or the TOTAL.
Answer: C) Goldfish to guppies is 3 : 5, and goldfish to all the fish is 3 : 8

Key idea: What a ratio means

The ratio 2 : 3 says: for every 2 of one thing, there are 3 of another. In a fruit basket of 2 apples and 3 oranges, the ratio of apples to oranges is 2 : 3. **Order matters** — the ratio of oranges to apples in the same basket is 3 : 2. The two quantities must be in the same unit (you can't ratio apples to kilograms unless you convert).

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Ratio and Proportion practice questions

More Class 6 Ratio and Proportion practice

A packet holds 36 biscuits, of which 27 are plain and the rest are cream-filled. What is…A hockey team played 30 matches and won 18 of them, losing the rest. The ratio of…A prize of ₹1600 is shared between Farah and Gita in the ratio 5 : 3. How much MORE than…72 saplings are planted along a road, neem and peepal in the ratio 4 : 5. How many…A 91 cm long copper wire is cut into two pieces whose lengths are in the ratio 6 : 7.…