NIACL Model Paper 7 with solutions for free online practice

Question : 48 of 100

Marks: +1, -0

The ratio of roses and lillies in a garden is 3 : 2 respectively. The average number of roses and lillies is 1 80. What is the number of lillies in the garden?

144
182
216
360
None of these

Validate

Solution:

(1) Let the number of roses and lillies in the garden be 3x and 2x respectively.
According to the question,

{3x+2x}/2= 180 ⇒ {5x}/2=180

⇒

x={180×2}/5=72

∴ Number of lillies
=

2x= 2 × 72 = 144

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