HARD
10th CBSE
IMPORTANT
Earn 100

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If the McDonald's logo is constructed as 2 parabolic curves of the form y=-Mx-62 and y=-Mx+62. If the McDonald's logo has a height to length ratio of 1.5, then find the value of M.

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Important Questions on Quadratic Equations

HARD
10th CBSE
IMPORTANT

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Which identity is illustrated in the above image?

HARD
10th CBSE
IMPORTANT

Akhil is an architect. He is into designing various villa projects. Akhil recently acquired 4 acres of land to start a new villa project equipped with all necessary amenties. He decided to construct 10 houses, each house occupying a land area of 25 cents. He also designed small triangular-shaped parks in the plot for the kids to play. He also designed a beautiful garden in the middle of the plot.

When the construction of villas started, 20 workers reached the plot. After the lunch, 288 oranges are distributed among these 20 men and women workers in such a way that each men get oranges which is same as the number of women and each women gets oranges which is same as double the number of men. If the number of women is maximum, find their numbers.

HARD
10th CBSE
IMPORTANT

The main span of the Howrah bridge in Kolkata, West Bengal is about 194 m long. The height of the towers is 26.2 m. The supporting cable for the main span of the bridge touches the road deck at the centre of the span. The parabola shown in the graph models the supporting cable of the main span of the Howrah Bridge and the green line segment represents the towers. Write down the values of m, n, p.

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MEDIUM
10th CBSE
IMPORTANT

A tour bus in jaipur serves 400 customers in a day. The charge is 50 per person. The owner of bus service estimates that the company would lose 10 passengers a day for each 5 fare increase.

How much should the fare be in order to maximise the income for the company and find the maximum income for the company.

HARD
10th CBSE
IMPORTANT

The diagram shows the graph of the function y=Ax2+Bx+C.

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Complete the table below to show whether each expression is positive, negative or zero.

 Expression  positive  negative  zero ACB2-4ACB

HARD
10th CBSE
IMPORTANT

Consider a person throwing a basketball 10 m above the ground. The basketball will reach its peak height and fall back to the ground. At time t, the height h from the ground is given by h=-2t2+8t+10. Calculate the time taken by the basketball to reach the ground.

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MEDIUM
10th CBSE
IMPORTANT
A hotel famous for barfi makes barfi in the shape of a right angle triangle. Rahul who is fond of eating barfis goes to the hotel and orders10 barfi for himself and his friends. When the barfi were served, they found that the Perimeter of each barfi was 60 cm, while the hypotenuse was 25 cm. With this information, they all calculated the area of the barfi and each had different answers. The correct area of the barfi is ?
HARD
10th CBSE
IMPORTANT

When buying Embibe T-shirts, Raju determines that the total cost of buying X T-shirts is given by the function,

FX=0.04X2-36X+9000

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If he wants to minimize the total cost of buying the T-shirts, how many shirts should he buy?