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DSSSB PRT 2022 Afternoon 📅 16 Mar, 2022

If the product of two numbers is 216 and the sum of their squares is 468, what is the sum of the numbers?

A
32
B
38
C
36
D
30
Result Summary
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DSSSB PRT
2022 • 16 Mar, 2022 • Afternoon
If the product of two numbers is 216 and the sum of their squares is 468, what is the sum of the numbers?
Correct Answer
30
• **Formula:** (x + y)² = x² + y² + 2xy. • **Given:** xy = 216, x² + y² = 468. • **Calc:** (x + y)² = 468 + 2(216) = 468 + 432 = 900. • **Resul......
Ref/Book : DSSSB PRT 2022
Ref. Subject Maths
Chapter -
Ref. Topic Algebra
Pg. No -
💡 Analysis & Explanation
• **Formula ▼
** (x + y)² = x² + y² + 2xy.
• **Given ▼
** xy = 216, x² + y² = 468.
• **Calc ▼
** (x + y)² = 468 + 2(216) = 468 + 432 = 900.
• **Result ▼
** x + y = √900 = 30.
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