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DSSSB PRT 2022 Afternoon 📅 23 Mar, 2022

The product of two numbers is 180 and the sum of their squares is 369. What is the sum of the numbers?

A
32
B
28
C
27
D
23
Result Summary
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DSSSB PRT
2022 • 23 Mar, 2022 • Afternoon
The product of two numbers is 180 and the sum of their squares is 369. What is the sum of the numbers?
Correct Answer
27
• Formula: (a+b)² = a² + b² + 2ab. • Calc: (a+b)² = 369 + 2(180) = 369 + 360 = 729. • Result: a+b = √729 = 27....
Ref/Book : DSSSB PRT 2022
Ref. Subject Maths
Chapter -
Ref. Topic Algebra
Pg. No -
💡 Analysis & Explanation
• Formula ▼
(a+b)² = a² + b² + 2ab.
• Calc ▼
(a+b)² = 369 + 2(180) = 369 + 360 = 729.
• Result ▼
a+b = √729 = 27.
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