Consider a 7 digit telephone number 336 -7624 which has the property that the first three digi
866 views · Published 13 October 2018 · 7:14 · Indexed 6 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Consider a 7 digit telephone number 336 -7624 which has the property that the first three digit prefix, 336 equals the product of the last four digits. How many seven digit phone numbers beginning with 336 have this property, e.g. (336-7624)
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