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If twice a certain integer is subtracted from 5 times the integer, the result is 63. Find...

Mathematics
WAEC 1989

If twice a certain integer is subtracted from 5 times the integer, the result is 63. Find the integer.

  • A. 21
  • B. 9
  • C. 7
  • D. 4
  • E. 3
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Correct Answer: Option A
Explanation

Let the integer = y

\(\therefore\) 5y - 2y = 63

3y = 63 \(\implies\) y = 21


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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789