Mathematics MCQs Police Department PPSC Past Papers Punjab Police Department Sub Inspector (SI) Complete the number series: 20,32,45,59,74,…….. January 31, 2022 Admin No Comments A: 75 B: 85 C: 90 D: 95 Correct Answer: c Short Details: 20,32,45,59,74,90,……. 20+12=32 32+13=45 45+14=59 59+15=74 74+16=90 View More Details >>