If the interest on a sum of ₹y at 10% per annum compounded
annually for 2 years is ₹630, then the total amount payable at the
end of the two-year period will be _________.
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A car travels 120 km at 40 km/h, 120 km at 60 km/h, and 100 km at
80 km/h. What is the average speed of the car for the whole
journey?
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Priya lent ₹920 to her friend at 5% per annum simple interest for 3
years. How much simple interest does she earn in this period?
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Evaluate 22 3 + (-16) 3 + (-6) 3
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A wholesaler offers a discount of 10% on a commodity, marked at
₹3,000, on an order of less than 20 items. Also, on an order of more
than 20 items, an additional discount of 5% is offered on the
commodity. What amount does a retailer have to pay to purchase 25
items of the commodity whose marked price is ₹3,000?
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A, B and C are three batsmen. The ratio of runs scored by them in a
certain match was A : B = 15 : 17 and B : C = 14 : 19. At the end of the
match, they scored 1542 runs. Find the number of runs scored by A.
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Which single digit should replace the blank in the number 1_36 so
that the number is divisible by 9?
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If the 8-digit number 79243p25 is divisible by 11, then the minimum
value of p is:
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A car travels a distance of 540 km. For the first 3 hours, it travels at a
speed of 80 km/h, and for the remaining hours, it reduces its speed
to 60 km/h. Find the total time taken by the car to cover the entire
distance.
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In a smart city, the number of electric vehicles increased by 18% in
2021 and 22% in 2022. What is the total percentage increase in
electric vehicles over the two years?
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Riya, Kabir, and Sana start a business together. Riya invests ₹13500
for 8 months, Kabir invests ₹21000 for 6 months, and Sana invests
₹18000 for 12 months. At the end of the year, they earn a total profit
of ₹12,600. What is Kabir's share of the profit (in ₹)?
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If the arithmetic mean of five numbers is 20 and one number is
changed from 10 to 20, what happens to the mean?
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The HCF of two numbers is 8, and their LCM is 240. If the sum of the
two numbers is 88, what are the numbers?
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X can finish a job in 20 days. Y can complete the same job in 15 days.
If X and Y work together for 5 days and X leaves, how long will Y take
to finish the remaining work?
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The population of a town decreased from 8,000 to 7,200 in one year.
What is the percentage decrease?
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A vendor uses a 50 g stone in place of a 60 g weight while selling
salt. If he sells the salt at the cost price per kilogram, what is his
profit percentage on the transaction?
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Three friends P, Q, and R start a business by investing in the ratio
2:3:5. If the total profit is ₹10,000, how much more does R receive
than P?
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If a sphere with radius 10 cm is painted, but 25% of its surface area
is masked and not painted, what is the painted area?
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Three numbers are in the ratio 3 : 2 : 11, and their LCM is 3564. Their
HCF is:8633
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The weighted average marks of a student in Physics, Chemistry and
Mathematics are 68. The weightages of the subjects Physics,
Chemistry and Mathematics are in the ratio 3 : 2 : 5. If the student
scored 60 in Physics and 70 in Chemistry, then find the marks in
Mathematics.
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Two taps can fill a cistern in 4 hours and 17 hours, respectively. A
third tap can empty it in 17 hours. How long (in hours) will it take to
fill one-fourth of the empty cistern if all the taps are opened
together?
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A shopkeeper sells a watch at a loss of 10%. If he had sold it for ₹450
more, he would have made a profit of 5%. What is the cost price of
the watch?
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The sum of two digits of a 2-digit number is 9. If the number
obtained by interchanging the digits exceeds the original number by
27, find the number.
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A shopkeeper fixes the marked price of an item 165% above its cost
price. What percentage of discount on marked price should be
allowed to gain 112%?
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The present ages of P and Q are in the ratio 4 : 5. Eight years ago, the ratio
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ABC is an equilateral triangle with side 24 cm and AD is the median. If G
d.
D. of their ages was 2 : 3. The harmonic mean of their present ages is is the centroid of the triangle ABC, find the length (in cm) of GD.
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A vertical tower stands on level ground. From a point P, the angle of elevation
the line joining P to the foot of the tower, the angle of elevation becomes
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Find the value of m which satisfies
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