PDF chapter test TRY NOW

1. Find the sum of all odd positive integers less than \(450\).
 
Answer:
 
Sum \(=\)
 
 
2. Find the sum of all natural numbers between \(602\) and \(902\) that are not divisible by \(4\).
 
Answer:
 
Sum \(=\)
 
 
3. Raghu wishes to buy a laptop. He can buy it by paying \(₹40,000\) cash or by giving it in \(10\) installments as \(₹4800\) in the first month, \(₹4750\) in the second month, \(₹4700\) in the third month, and so on. If he pays the money in this fashion, find out:
 
(i) total amount paid in \(10\) installments.
 
(ii) how much extra amount that he has to pay than the cost?
 
Answer:
 
(i) Total amount paid in \(10\) installments \(=\) \(₹\)
 
(ii) Extra amount that he has to pay than the cost \(=\) \(₹\)