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Start learning 50% faster. Sign in nowLet the usual speed be x km/hr New speed = 125% of x = 5x/4 km/hr Distance = 217.5 km According to the question 217.5/x – 217.5/(5x/4) = 90/60 217.5 x [(5 – 4)/5x] = 3/2 Therefore, x = 217.5 x (1/5) x (2/3) = 29 km/hr
The area of two similar triangles is 400 cm² and 324 cm², respectively. What is the ratio of their corresponding altitudes?
A maximum-size sphere is cut from a hemisphere of radius r. Find the ratio of the volume of the sphere to the hemisphere. Radius of Hemispher
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The angle of elevation of the top of a tower from a point on ground which is 30 mtrs. away from the foot of the tower is 30°. Height of the tower is:
If the length of a rectangle becomes double and its breadth becomes three-fourth, then find the percentage increase in its area.
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If the volume and radius of a cylinder is 19250 cm3 and 35 cm respectively then find the height of the cylinder?
A rectangular piece of copper foil of length 35 cm and area 770 cm2 is folded along its width to form a cylinder such that there is only one ...
