Numbers Questions

In an arithmetic progression if 13 is the 3rd term, -­47 is the 13th term, then ­-17 is which term?

If A = 1 – 10 + 3 – 12 + 5 – 14 + 7 + ... upto 60 terms, then what is the value of A?

What is the value of 10.2+10.02+10.002+... upto 9 terms

How many numbers are there between 1 to 200 which are divisible by 3 but not by 7?

A fraction becomes 6/5 when 5 is added to its numerator and becomes 1/2 when 4 is added to its denominator. What will be the value of the fraction?

The number 3521is divided by 8. What is the remainder?

What is the sum of first 40 terms of 1 + 3 + 4 + 5 + 7 + 7 + 10 + 9 + ....?

Consider  the  multiplication  999  ×  abc  =  def132  in  decimal  notation, where  a,  b,  c,  d,  e  and  f  are digits. What are the values of a, b, c, d, e and f respectively?