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Using only the digit from 0 to 5. How many 5 digit codes can be constructed? If the first digit cannot be 3 and number of digits cannot be used more than once.

Read Solution (Total 13)

TCS Other Question

A sum of Rs. 400 is to be used to give four cash prizes to students of a school for their overall performance. If each prize is Rs. 20 less than its preceding prize, find the value of each prize. Suppose n is an integer, such that the sum of the digits of n is 2, and 10^10 < n < 10^11 . The number of different values for n is:

(i) 11
(ii) 10
(iii) 9
(iv) 8