A solution contains milk and water in ratio 4:3. What part of solution must be taken out and replaced with water so that the resulting solution contains milk and water in the ratio 2:3 ?a) 25%
b) 30%
c) 28%
d) 23%
What's the distance between house and office
If B had increased his speed by 20% at Q and left at the normal time, he would have met A at Z. If XZ = 5 km, find the distance QX.
-------------- -A quadrilateral if cut by its diagonals into 4 triangles. In each traingle an incircle is made. The radius of the incircle is 3,6,2,R respectively in order. The quadrilateral is such type of a quadrilateral so that an incircle in it is possible (tangential Quadrilateral) . Then what is the value of R ?
Any approach..
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In a G.P. the ratio of the sum of the last 8 terms to the sum of the first 8 terms is 8. The ratio of the sum of all terms without the first three terms to the sum of all terms without the last three terms is 8. Find the number of terms in the G.P. ???
Approach
Three pipes X, Y and Z have filling rates of 42 litres/hr, 54 litres/hr and 48 litres/hr respectively. They are all opened simultaneously into a tank of capacity 630 litres. In the last hour of filling, only Y was used to fill the tank. Find the total time taken to fill the tank.
Given that the cost price of 10 oranges is equal to the cost price of 1 kg of apples and the cost price of12 apples is equal to the cost price of 1 kg of oranges. If the selling price of 15 oranges is equal to theselling price of 1 kg of apples, then the selling price of 1 kg of oranges is equal to selling price of
(Assume that all the apples are identical and this holds true for the oranges as well.)
(a) 8 apples
(b) 9 apples
(c) 10 apples
(d) 12 apple
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Q 37 approach?
Anyone ?
Question 5
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Q 1 and Q2
Q 40
In a right angle triangle ABC, a perpendicular is dropped from vertex B to hypotenuse AC. Now taking BP as diameter a circle is drawn as shown in the figure. Find out the area of shaded portion.
A, B and C start business in partnership with respective initial investment of Rs.4200, Rs. 3600 and Rs.2400. after 4 months from the start of the business, A invests an additional amount of Rs. 100 in the business. After 6 months from the start of the business B and C invest additional amounts in the respective ratio of 1:2. After 10 months they get a total profit of Rs. 2820. If the share of A in profit be Rs.1200, what was the additional investment made by B ?