A thousand ways to pass basic mathematics examination

241.If 101010 = x₁₀ + 1111₂, the value of x is
  • A. 32
  • B. 27
  • C. 19
  • D. 13
242.The population of a school is 1,376. Express this to three significant figures
  • A. 1,370
  • B. 1,376
  • C. 1,380
  • D. 138
243.Adekunle’s daily wage is N80 for the first 10 days and N100 for the next 9 days.Find the daily wage for the remaining 6 working days of the month, if his average daily wage for the month is N90.80
  • A. 110
  • B. 105
  • C. 95
  • D. 92.50
244.Find the value of x if 4logx + 5logx – 7logx = log16
  • A. 2
  • B. 4
  • C. 8
  • D. 16
245.A motorist drives from P to Q at an average speed of 80km/hr and immediately returns from Q to P through the same route at an average speed of 50km/hr. The average speed for the round-trip journey is
  • A. 53.3km/hr
  • B. 60.0km/h
  • C. 62.5km/hr
  • D. 65.0km/hr
246.If X = array(1,2,3,4,5,6), Y =array(2,4,5,7) and Z = array(1,4,5) which of the following is (are) correct?i.n(XUYUZ)=13, ii.(XnY)UZ=Xn(YUZ), iii.n(XnYnZ)=2
  • A. I only
  • B. II only
  • C. I and III only
  • D. II and III only
247.Factorize:6²ᵐ⁺¹ + 7(6ᵐ)–5
  • A. array(3(6ᵐ)+5)array(2(6ᵐ)–1)
  • B. array(3(6ᵐ)–5)array(2(6ᵐ)+1)
  • C. array(3(6ᵐ)–5)array(3(6ᵐ)+1)
  • D. array(3(6ᵐ)+5)array(3(6ᵐ)–1)