the price of oil decreases by 8%.As a result a person can purchase 2litrs more oil for ₹420.What is the reduced price of oil per litre

16.8 Rs/ litre is reduced oil price

when price of oil reduces by 8%, new price becomes 92% of the original price. And since the difference between the old(100) and new(92) price is 8% an increase of 8/92*100 = 8.7 is achieved for consumption. Now this 8.7 corresponds to the 2lit. So 2/8.7 * 100 = 23 lit(original consumption). Now, since it is given that the price is 420. We get 420/23 = 18.26, and the new price should be 18.26 * 0.92 = 16.8 rs/lit.

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Which paper are you talking about?

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A sequence of numbers is written in the following fashion: 1, 7, 1, 1, 7, 7, 1, 1, 1, 7, 7, 7, ... till ‘n’ terms. The sum of first 5001 terms of the given sequence is

Hi Peeyush,If we take 1 and 7 as a set Number of terms = 2+4+6......... ~5001n(n+1) ~500170(71) = 4970hence, in the end there will be 70 1's and 70 7's and 31 1's after that Sum = 31(1)+(4970/2)(8) =19911Hope that helps.Thanks,Varun.

I have a doubt.. If it's given like, "A is sitting two places away from C", how is their arrangement be done? Is it like: A _ _ C C _ _ A (gap of two persons between them) or A _ C C _ A (gap of one person between them)

There will be a gap of only one person as second place will be occupied by the person sitting away. So, possible arrangements are A_C or C_A.

APPROACH PLEASE a.the sum of products of ten numbers (both positive &negative; signs)1,2,3,...5 taking two at a time is ? B.If a ,b ,c are real numbers ,then minimum value of ab+bc+ca? C. If |x| -|y| =13 then which of following can't be value of x-y? options: -19 / -9/-17/none of these

Hi AshtaI think you have posted 3 questions in the same post. I would request you to post the questions separately to improve their readability. This would help us to answer you better. Hope that helps.