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Devangi’s phone subscription charges for the period 17-02-09 to 16-03-09 were as follows : Period Amount (in Rs) Service Tax % 17-02-09 to 23-02-09 199.75 12 24-02-09 to 16-03-09 599.25 10 Find the final bill amount if 3% education cess was also charged on service

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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If principal = Rs 1,00,000. rate of interest = 10% compounded half yearly. Find Interest for 6

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Rahim borrowed Rs 10,24,000 from a bank for one year. If the bank charges interest of 5% per annum, compounded half-yearly, what amount will he have to pay after the given time period. Also, find the interest paid by

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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In direct proportion, `(a_1)/(b_1)` __________

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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If x varies inversely as y and x = 20 when y = 600, find y when x =

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons. Later on, it was required to complete the job in 5 months. How many extra persons should he employ to complete the

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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It is given that l varies directly as m. (i) Write an equation which relates l and m. (ii) Find the constant of proportion (k), when l is 6 then m is

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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If Naresh walks 250 steps to cover a distance of 200 metres, find the distance travelled in 350

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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A car travels a distance of 225 km in 25 litres of petrol. How many litres of petrol will be required to cover a distance of 540 kilometres by this

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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From the following table, determine if x and y are in direct proportion or not. x 1 4 9 20 y 1.5 6 13.5 20

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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A bowler throws a cricket ball at a speed of 120 km/h. How long does this ball take to travel a distance of 20 metres to reach the

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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What is the area of the triangle ADE in the following figure?

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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What will be the change in the volume of a cube when its side becomes 10 times the original

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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The ratio of radii of two cylinders is 1: 2 and heights are in the ratio 2:3. The ratio of their volumes

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The circumference of the front wheel of a cart is 3 m long and that of the back wheel is 4 m long. What is the distance travelled by the cart, when the front wheel makes five more revolutions than the rear

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Find the volume of each of the given figure if volume = base area `xx`height.

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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A rectangular sheet of dimensions `25 cm xx 7 cm` is rotated about its longer side. Find the volume and the whole surface area of the solid thus

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The expression for `8^(–2)` as a power with the base 2 is

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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The length, breadth and height of a cuboidal reservoir is 7 m, 6 m and 15 m respectively. 8400 L of water is pumped out from the reservoir. Find the fall in the water level in the

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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