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Ratio & Proportion
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DSSSB PRT 2022 Afternoon 📅 16 Mar, 2022

The ratio of three numbers is 2 : 3 : 5. If their product is 810, what is the sum of the three numbers?

A
40
B
50
C
20
D
30
Result Summary
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DSSSB PRT
2022 • 16 Mar, 2022 • Afternoon
The ratio of three numbers is 2 : 3 : 5. If their product is 810, what is the sum of the three numbers?
Correct Answer
30
• **Let Numbers:** 2x, 3x, 5x. • **Product:** (2x)(3x)(5x) = 30x³. • **Equation:** 30x³ = 810 -> x³ = 27 -> x = 3. • **Sum:** 2x + 3x + 5x = 10x =......
Ref/Book : DSSSB PRT 2022
Ref. Subject Maths
Chapter -
Ref. Topic Ratio & Proportion
Pg. No -
💡 Analysis & Explanation
• **Let Numbers ▼
** 2x, 3x, 5x.
• **Product ▼
** (2x)(3x)(5x) = 30x³.
• **Equation ▼
** 30x³ = 810 -> x³ = 27 -> x = 3.
• **Sum ▼
** 2x + 3x + 5x = 10x = 10(3) = 30.
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