A and B can do a piece of work in 12 days and 30 days, respectively.
Both work for 4 days and then A leaves. How long (in days) will B
take to complete the remaining work?
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A spherical tank has a diameter of 28 cm. What is the total surface
area of the tank? (Use π = 22/7)
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Evaluate 23 3 + (-19) 3 + (-4) 3
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If 40% of a number exceeds 25% of it by 42, then the number is:
5704
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A trader marks his goods such that even after allowing a discount of
25%, he makes a profit of 10%. If he gives only 10% discount, then
find the profit percentage.
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Eduardo, Abraham and Xavier can finish a certain piece of work in 6,
34 and 36 days, respectively. All three of them started the work
together. Eduardo left the work after 2 days and Abraham left just 3
days before the work was completed. Find the total number of days
taken for the work to be completed.
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Patna Express leaves Delhi at 10:00 AM and reaches Patna at 7:00
PM the same day. Delhi Express leaves Patna at 2:00 PM and reaches
Delhi at 1:00 AM on the next day. Both trains travel on the same
route in opposite directions. At what time do they meet?
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What is the mode of the following data?
43, 40, 41, 53, 50, 41, 44, 45, 43, 46, 48, 46, 51, 55, 52, 42, 46, 45
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The difference between the measure of an interior angle and an
exterior angle of a regular polygon is 100°. What is the number of
sides of the polygon?
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The cost of five tables and seven chairs is ₹7040. If a table costs
₹400 more than a chair, find the cost of a table.
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The largest four-digit number which when divided by 11, 7 and 14
leaves the remainder 2 in each case, is:
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What smallest positive number should be subtracted from 3 and 5
so that 8 is the third proportional to them?
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An article is sold at a profit of 21%. If the cost price is increased by
₹50 and the selling price is reduced by ₹69, then the profit would be
13.6%. What is the original cost price (in ₹) of the article?
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Find the smallest number which when divided by 9, 12 and 15 leaves
a remainder 3 in each case.
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The median of the given distribution is 28.5. Find the missing
frequency x. Class 0-10 10-20 20-30 30-40 40-50 50-60 Frequency 5 x
20 15 7 5
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A company has two departments, 'A' and 'B', with employees in the
ratio 5:7, respectively. If 28 employees are transferred from
department 'B' to 'A', the ratio becomes 1:1. How many employees
does each department have originally?
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A retailer has fixed the price of an article at 20% above the cost
price. If he offers a discount of ₹2 for a purchase of ₹30, what is his
gain or loss percentage?
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The marked price of a cooker is the same at four shops I, II, III and
IV. Shop I allows two successive discounts of 87% and 37%, shop II
allows successive discounts of 81% and 37%, shop III allows
successive discounts of 57% and 54% and shop IV allows successive
discounts of 91%, 25%, and 59% on the marked price of the cooker.
Which shop is selling the cooker at the lowest price?
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Which formula correctly calculates simple interest when the
principal, rate, and time are known?
a.
Simple Interest = Principal × Rate / Time
b.
Simple Interest = (Principal × Rate × Time) / 100
c.
Simple Interest = Principal + Rate + Time
d.
Simple Interest = Principal × Time / Rate
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Ramu is 8 years older than Keeran. Seven years ago, Ramu's age
was three times Keeran's age. Find the present age of Ramu.
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By selling lemons at 5 for a rupee, a man loses 34%. To gain 10%
how many must he sell for a rupee?
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A water pipe is in the shape of a hollow cylinder with an outer radius
of 10 cm and an inner radius of 8 cm. If the length of the pipe is 2 m,
what is the total surface area (including both ends and the inner and
outer curved surfaces) of the pipe in square centimeters? (Use π =
22/7 and rounded off to the nearest integer)
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A and B invest ₹12,000 and ₹8,000, respectively, in a business. If the
total profit is ₹10,000, what is A’s share of profit?
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Venu invested a certain sum of money at 10% per annum. After 2
years, he received ₹136.50 as compound interest, compounded
annually. Find the corresponding simple interest (in ₹) for 2 years at
the same rate.
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A man walks 6 km at a speed of 6 km/h and then runs 18 km at a
speed of 9 km/h. What is his average speed (in km/h) for the entire
distance?
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The simplified value of the expression is ____.
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Given that tan θ = 2 and θ is in the first quadrant, what is the value of sec
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