Join 60,000+ competitive exam aspirants
or with email
Your Cart
Subtotal₹0
Total₹0
Examoogle • User • info@examoogle.com • EE-2024-8821
Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
Join 60,000+ competitive exam aspirants
The value of 122+144−364−12=?
120
116
132
108
120
Use BODMAS: Compute squares and square roots first, then proceed with addition and subtraction sequentially to avoid order-of-operation errors.
Expression given is 12² + sqrt{144} - 3sqrt{64} - 12.
a2+b−cd−e=x
Use BODMAS: Compute squares and square roots first, then proceed with addition and subtraction sequentially to avoid order-of-operation errors.
Students often miscalculate 364 as (3×64) vs performing multiplication before subtraction; additionally, some subtract 12 at the wrong stage.
Evaluate powers and roots
Calculate 122=144, 144=12, and 64=8.
144+12−3(8)−12
Perform multiplication
Multiply the constant with the root value: 3×8=24.
144+12−24−12
Simplify the final expression
Calculate the result by performing addition and subtraction from left to right: 144+12−24−12=156−24−12=132−12=120.
120
A is correct because the result of the simplification 144+12−24−12 is 120.
This basic arithmetic foundation is critical for Data Interpretation (DI) sets, where quick calculation of percentages and square roots determines the time taken to solve the entire set.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download • 100K+ Aspirants