## Company

• ### Suppose n is an integer such that the sum of digits of n is 2 and 10^10 < n< 10^11. The number of different values for n is

last reply by yogesh  •  6 years ago  •  asked by Mi

• ### Suppose n is an integer such that the sum of digits of n is 2 and 10^10 < n< 10^11. The number of different values for n is

last reply by yogesh  •  6 years ago  •  asked by Mi

• ### Given that Q=1!+2!+3!+4!+......+(n−1)!+n!. For how many values of ‘n’, Q is a perfect square?

last reply by yogesh  •  6 years ago  •  asked by arun kumar

• ### Let P be a natural number that leaves a remainder 3, when divided by 7 and let Q be another natural number that leaves a remainder 1, when divided by 5. How many ordered pairs (P, Q) exist such that the difference between P and Q is greater than 177 and the sum of P and Q is less than 203?

last reply by sandeep kr jha  •  8 years ago  •  asked by arun kumar

• ### The total number of integer pairs (x, y) satisfying the equation x + y = xy is

last reply by apoorv  •  7 years ago  •  asked by arun kumar