Please explain the solution.
If a and b are real numbers such that a^(a^b)=b and a not equal to b, then what is the value of (a^b)-b?
P is an integer such that P > 883. If P - 7 is a multiple of 11, then the largest number that will always divide (P + 4) (P + 15) ?
if a man reduces the selling price of a fan from rs. 4000 to rs. 3800 his loss increase from x% to (x+4)% what is the cost price of the fan
If the HCF of A, B, C is x, then is the HCF of A-B, B-C, and C-A also x? If not always, under what color condition will it be equal to x?
Last one
Abhijeet Guha or Nishit Sinha which book to buy?
What is the maximum value of fx=minimum (4-5x, x-3) for every x belonging to (0,4)
A can hit the target 3 times in 6 shots, B two times in 6 shots and C 4 times in 6 shots. They fire a volley. What is the probability that atleast 2 shots hit? approach? i am actually not very clear about the convept when to multiply hit of one non hit of other and when to solve directly..could someone help?
Pls explain below que -
If A and B are two sets, with n(A) = 5 and n(B) = 3, the number of functions possible from A to B, which are not surjections is __.
What is the min value of x/(x^2+6x+15), given that x is real? a.-3+√15/12 b.-3-√15/12 c. -5+√15/12 d. -5-√15/12 P.s. I don't know the ans. I want to know the approach. Pls justify you solution
Sollve
Given a triangle ABC, side AB = side AC. Draw a line from C to
side AB. Call that line CD. Now draw a line from B to side AC. Call
that line BE. Let angle EBC = 60 degrees, angle BCD = 70 degrees,
angle ABE = 20 degrees, and angle DCE = 10 degrees. Now draw
line DE.
Find angle EDC.
A team of 4 is to be constituted out of 5 girls and 6 boys. Find the probability that the team may have 3 girls? want a little clarity in the concept!
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Find minimum of (1+v^2)/(1+v )for positive values of v..
In how many ways can eight people comprising four married couples sit at a circular table such that no two men sit together and no husband sits beside his wife?
A = {179, 180, 181, ..,360}. B is a subset of A such that sum of no two elements of B is divisible by 9. The number of elements in B cannot exceed? Shouldn't the answer be 102? OA:82
A boy while reading a story book realized that a certain number of consecutive leaves were missing from the book.Each leaf is numbered on either side and is considered as two pages.When he added all the page numbers that were missing,he got a sum of 180.The no. Of leaves that were missing from the book was? Ans:4 Plz explain the approach
A pair of fair dice are rolled together till a sum of either 5 or 7 is obtained. The probability the 5 comes before 7 is? 0.45, 0.4, 0.5, 0.7