Given w = -2, x = 3, y = 0 & z = -1/2, find the value of w2(z2 + y2)
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If (x- 7)2 + (y + 10)2 + (z - 6)2 = 0, then find the value of x + y+ z.
A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Let number of balls = (6 + 8) = 14.
Number of white balls = 8.
P (drawing a white ball) = 8 /14 = 4/7.
0.33 + 0.23 0.3 - 0.22 = ?
Angles of the triangle are in the ratio of 1:2:3. Choose the correct triangle for the given ratio.
On what dates of April, 2001 did Wednesday fall?
We shall find the day on 1st April, 2001.
1st April, 2001 = (2000 years + Period from 1.1.2001 to 1.4.2001)
Odd days in 1600 years = 0
Odd days in 400 years = 0
Jan. Feb. March April
(31 + 28 + 31 + 1) = 91 days 0 odd days.
Total number of odd days = (0 + 0 + 0) = 0
On 1st April, 2001 it was Sunday.
In April, 2001 Wednesday falls on 4th, 11th, 18th and 25th.
What is the value of 88% of 1125 + 20% of 425?
A sum of money lent at compound interest for 2 years at 20% per annum would fetch Rs.482 more, if the interest was payable half yearly than if it was payable annually . The sum is
Let sum=Rs.x
C.I. when compounded half yearly = x1+101004-x=464110000
C.I. when compounded annually =x201002-x=1125
464110000x-1125x=482
=> x=20000
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