The following bar chart shows the number of flowers (in '000 kg) grown by a floriculturist in 5 consecutive years?

The number of flowers grown in Y5 was 15% more than those grown in Y4. The number of flowers grown in Y6 was 20% more than those grown in Y5. What is the difference between the numbers of flowers grown in Y9 and Y4?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 154000
The number of flowers grown in Y6 was 20% more than those grown in Y5.
345000= (100 + 20)% of number of flowers grown in Y5
345000 =120% of the number of flowers grown in Y5
number of flowers grown in Y5 = (345000/120) × 100
= 287500
The number of flowers grown in Y5 was 15% more than those grown in Y4.
Number of flowers grown in Y5 = (100 + 15)% of number of flowers grown in Y4
287500 = 115% of the number of flowers grown in Y4
number of flowers grown in Y4 = (287500/115) × 100
= 250000
Difference between the numbers of flowers grown in Y9 and Y4 = 404000 - 250000
= 154000