Question
4567.89 - 567.89 - 678.89 =
? What will come in place of the question mark (?) in the following question?Solution
4567.89 - 567.89 - 678.89 = ? 4000 - 678.89 = ? 3321.11 = ?
 `sqrt(sqrt(10+sqrt(10+sqrt(10)) ... prop)`  = ?
- If 4x + y = 18 and xy = - 10, what is the value of 4x - y?
(p + 3) 2 + (q – 7) 2 + (r + 4)2 = 0, then find the value of p + q – r.
If there are a total of 1000 students in the school, how many students prefer Mathematics and science?
Find the value of ‘x’ in the given expression:
(49/16)x × (64/343)x-1 = 4/7
A boat covers a distance of 75 km downstream in 2.5 hours. If the ratio of upstream speed to downstream speed of the boat is 3:5, then find the distance...
√(92×8 ×52+700) = ?
If 10x2 – 6xy+y² – 4x+4= 0, then find the value of (3x+2y).
If 2x+1, x+2, 2 and 5 are in proportion, then what is the mean proportional between 3.5(1-x) and 8(1+x)?