arrow
arrow
arrow
If a cube of a number is subtracted from (153)^2, the number so obtained is 1457, Find the number.
Question

If a cube of a number is subtracted from (153)^2, the number so obtained is 1457, Find the number.

A.

28

B.

18

C.

24

D.

16

Correct option is A


Let the number be x
(153)^2- (x)^(3 )=1457
(x)^(3 )=23409-1457
(x)^(3 )=21952
x = ∛(2×2×2×2×2×2×7×7×7)
x = 2×2×7
x = 28

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

CBT-1 General Awareness Section Test 1

languageIcon English
  • pdpQsnIcon40 Questions
  • pdpsheetsIcon30 Marks
  • timerIcon25 Mins
languageIcon English
test-prime-package

Access ‘RRB JE CBT-I’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
354k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow