In ΔABC, D is the midpoint of BC. E is a point on AC such that AE : EC = 2 : 1 and F is a point on AB such that AF : FB = 3 : 1. Line segments AD and FE intersect at point O. What is the ratio of the area of ΔDOF to the area of ΔDOE?
1.9:8 2.8:9 3.3:4 4.4:3how to find pythogorean triplets..say 11 is given how to find the other two???
two circles both of radius 1cm intersect such that the circumference of each one passes through the center of the other.what is the area(in sq cm) of the intersecting region?
- (4pi/3)+(3^1/2/2)
- (4pi/3)-(3^1/2/2)
- (2pi/3)+(3^1/2/2)
- (pi/3)-(3^1/2/4)
- (2pi/3)-(3^1/2/2)
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a mixture of 70litres of alcohol and water contains 10% water. how much water should be added to make the resultant solution that contains 12.5% water inn it???
find the remainder when 17^21^225 is divided by 117?
Find remainder when 13^2013 divided by 100. ?
the average weight of 5 men is decreased by 3 kg when one of them weighing 150 kg is replaced by another person. Find the weight of new person?
plss explain in detail.
Let f(x) = ax^2 – b |x| , where a and b are constants. Then at x = 0, f(x) is
(1) maximized whenever a > 0, b > 0 (2) maximized whenever a > 0, b
(3) minimized whenever a > 0, b > 0 (4) minimized whenever a > 0, b
please explain as well. . .Two ships A and B sail straight towards the same port P with speeds a and b respectively. In the beginning A, B and P form an equilateral triangle. After some time A and B move to the new positions, B covers 80 km, and ABP becomes a right triangle. At the moment when A arrives at P, B is 120 km away from P. What is the distance between A and B in the beginning? (A) 243(B) 283(C) 240(D) 150
Can this Q be done like : triangles ACB and AED are similar,let angle B = D =y.And angle AED = angle ACB =x.using the fact that sum angles of quad. is 360,(x-y) = 60.now A+B+D is 180 - x -y +2y = 180-(x-y).so 180-60 = 120?
@scrabbler , bhaiya confirm plz.
A dishonest milkman purchased milk at Rs. 10 per litre and mixed 5 litres of water in it. By selling the mixture at the rate of Rs. 10 per litre he earns a profit of 25%. The quantity of the amount of the mixture that he had was
please explain
If A1, A2,.........A8 are vertices of a regular octagon. What is ratio of length A1A3 to A1A4?
approach pls
PLEASE explain...CLEARLY :/
A and B run a 5km race on a round course of 400m .If their speeds be in ratio of 5:4 .How often does the winner pass other..
ABC is a triangle given that angle B is equal to 2x and angle C is equal to x. AD is the angle bisector of angle A on line BC.Given that side AB=DC find angle BAC.
1) 36 2) 72 3) 144 4) none
peter bought an item at 20% discount on its original price, he sold it with 40% increase on the price he bought it,then the new sale price is by what % more than the original price
- 12
- none
- 15
- 10
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least 5 digit no which on divided by 12,18,21,28 leaves the same remainder...
What is the remainder when 17^100 is divided by 153? Is
the answer 17 or 136? pagulguy mock..
In a group of 5 people, what is the probability of finding 2 persons with the same month of birth?
No OA available.
find the remainder of 34^320 when divided by 214?
a)86
b)112
c)203
d)42
plzz share the approach guys :)
plzz share the approach guys :)
Each person in a group of 110 investors has investments in either equities or securities or both.
Exactly 25% of the investors in equities have investments in securities, and exactly 40% of the
investors in securities have investments in equities. How many have investments in equities?