Number System - Questions & Discussions

@ranjan19 said:
not getting this question ,please anyone solve this question.
991 is it?
@blade014 said:
991 is it?
how did u do ??

@[545694:ranjan19] : max possible ratio being 52.15. OA please?

@[545694:ranjan19]


suppose 9 is the first digit...then 99X is the 3-digit no.
bhai, 999 is the largest 3 digit no. but sum of digits is 27 which will not give us our max. ratio.
going by the different combinations for third digit, 991 gives us the sum= 19 which gives 52.15.

or

writing it in equation :

(110x + y)/(2x + y)

maximise numerator and minimise denominator to get the soln.
@blade014 said: @ranjan19
suppose 9 is the first digit...then 99X is the 3-digit no.
bhai, 999 is the largest 3 digit no. but sum of digits is 27 which will not give us our max. ratio.
going by the different combinations for third digit, 991 gives us the sum= 19 which gives 52.15.
or
writing it in equation :
(110x + y)/(2x + y)
maximise numerator and minimise denominator to get the soln.
ok ! got it .thanks a lot

@[545694:ranjan19] why 991 why not 998??


@[495533:trainee_Pagal]: ratio comes maximum in case of 991 and not in case of 998. the qstn asks for max. ratio hence 991.

help me solve dis ..

(2^133)/133
whats d remainder ???

@[604352:smittt] its 128..
(2^7)/133 gives remainder 128. According to the remainder theorem, (2^7x)/133 for any x from 1 to infinity gives the same remainder 128 :D

@[545694:ranjan19]
plz explain

the extension of a spring from it's rest position is directly proportional to the force acting on spring.an additional force applied on already stretched spring produces a further extension which is twice of initial extension.what is ratio of additional force to initial ratio??

explain in detail answer of this que

the monthly income of ashok and bala be 3:4.the ratio of expenditure of ashok and bala is 4:5.find ratio of savings of ashok and bala??


@challenger90 said: the monthly income of ashok and bala be 3:4.the ratio of expenditure of ashok and bala is 4:5.find ratio of savings of ashok and bala??
No other condition, is it?
@challenger90 said: the monthly income of ashok and bala be 3:4.the ratio of expenditure of ashok and bala is 4:5.find ratio of savings of ashok and bala??
CBD - Cannot be Determined..!! :)
@challenger90 said: the extension of a spring from it's rest position is directly proportional to the force acting on spring.an additional force applied on already stretched spring produces a further extension which is twice of initial extension.what is ratio of additional force to initial ratio??explain in detail answer of this que
x=kf1
2x=kf2
f1:f2 = 1:2
V is product of first 41 natural numbers and A = V + 1. Find the number of prime number among A + 1, A + 2, A + 3, A + 4, €Ś, A + 39, A + 40.

a1
b2
c3
d4
e0

there is no other condition given..nd answer is 4:5

@ashishpai2001 said:
No other condition, is it?

no..answer is 4:5

@Estallar12 said:
CBD - Cannot be Determined..!!

acc to second condition in question won't it be 2x=k(f1+f2)????
since additional force is being applied on existing one

@ashishpai2001 said:
x=kf1 2x=kf2
f1:f2 = 1:2

@[593895:challenger90]


No we cannot determine.. let us say Ia = 3x & Ea = 4y... Hence, Ib = 4x & Eb = 5y...

Therefore, Sa/Sb = (Ia-Ea)/(Ib-Eb) = (3x-4y)/(4x-5y) = (3-4x/y)/(4-5x/y)...

Since, x/y can take any values, answer will also depend on it.. Hence we cannot determine the answer 😃 :)