@amresh_maverick said:Given x and y are integers and 5x^2 + 2y^2 =5922 , what can be the unit digit of y ?options should be given here3 ,5 ,7 ,9
@scrabbler said:@saurav205 said: M also getting 6 as a possibility....anyone getting 6?Yes, I had missed that first time round...recheck pe mila 5x^2 will end in 0 or 5. So 2y^2 = 5922 - 5x^2 will end in 7 or 2. Now can't be 7 as even. So 2y^2 ends in 2 and hence y^2 ends in 1 or 6. Hence y ends in 1 or 6 or 9.regardsscrabbler
@saurav205 said:aapne miss kiya tabhie mujhe doubt hua...
@scrabbler said:Aaj neend mein hoon long day, and met two friends shaam ko (separately) so had 2 rounds of dinner Now feeliing pleasantly drowsy...so accuracy gone for a toss...don't trust me!regardsscrabbler
@saurav205 said:hmm....chalo koi nai...dont you guys go to office..I get shit tired after office...
@saurav205 said:Mumbai...No spamming...sorry puys..
@mohitjain said:dis last question 4 uThere are 'n' students in a class. The average age of a student of this class is 'A' years. Two students left the class and 4 new students joined. Incidentally, the average age of a student in the class, did not change. The sum of the ages of the 6 students (who either left or joined the class) was 72 years. Find the value of A. a36 years b24 years c12 years d18 years eData Inadequate
@mohitjain said:dis last question 4 uThere are 'n' students in a class. The average age of a student of this class is 'A' years. Two students left the class and 4 new students joined. Incidentally, the average age of a student in the class, did not change. The sum of the ages of the 6 students (who either left or joined the class) was 72 years. Find the value of A. a36 years b24 years c12 years d18 years eData Inadequate
@saurav205 said:@amresh_maverickBhai one more question if its possible....Else sone jaa raha hoon..else will be sleepy in office....
I had asked for 1 question..got 3 in return....
@saurav205 said:An - X + Y = Anx- 2people who lefty- 4 people who joinedx= yI dont know man...Data inadequate lag raha hai...
@scrabbler said:(e) DI?regardsscrabbler
@mohitjain said:ji sir...yaha data inadequate he..bt jaha main ye solve kar raha tha waha e option tha hi nai ..so i added it..
@amresh_maverick said:Remainder when 2^1990 is divided by 1990
@saurav205 said:Smart kid...n pls no sir...
@bs0409 said:If p=abc and Q=uv are three digits and two digits natural numbers respectively,such that u and v must be distinct integers.How many pairs of P and Q are there in total which gives the same result when we multiply abc with uv as the product of cba with vu?a.2 b.8 c.5 d.cbd
@scrabbler said:Options pls Edit: Waise 1024 hai kya?regardsscrabbler