Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

In any set of 181 square integers, prove that one can always find a subset of 19 numbers, sum of whose elements is divisible by 19.

In any set of 181 square integers, prove that one can always find a subset of 19 numbers, sum of whose elements is divisible by 19.

Grade:12th Pass

1 Answers

sushant singh
66 Points
10 years ago

hey surendra i think this question is easy if you understand the fact of modulo

as  there are just 10 quadratic residues in modulo 19; we can ?nd 19squares having the same remainder upon division by 19.

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free