76. After a discount of 23% an article is sold for Rs 1848. What is the marked price (in Rs) of the article?
77. If $$\frac{3}{5}P=\frac{7}{2}Q=\frac{7}{5}R$$, then what is the ratio of P,Q and R respectively ?
78. What is the average of first 93 natural numbers?
79. A trader sells two items at the rate of Rs 400 each. If he gains 15% on one and losses 15% on other, then what is the value (in Rs) of loss ?
80. 30% of a number exceeds 25% of the same number by 27. What is the value of the number?
81. 37 trees are planted in a straight line such that distance between any two consecutive trees is same. A car takes 20 seconds to reach the 13th tree. How much more time (in seconds) will it take to reach the last tree?
82. If a certain sum of money doubles itself in 7 years 8 months at simple interest, then what will be the yearly rate of interest (in %)?
83. What is the value of $$\frac{1}{x^{(p-q)}+1}+\frac{1}{x^{(q-p)}+1}$$ ?
84. If $$x=8+2\sqrt{15}$$, then what is the value of $$\sqrt{x}+\frac{1}{\sqrt{x}}$$ ?
85. What is the value of $$\frac{1+a}{a^{\frac{1}{2}}+a^{\frac{-1}{2}}}-\frac{a^{\frac{1}{2}}+a^{\frac{-1}{2}}}{1+a}+a^{\frac{-1}{2}}$$ ?
86. If $$\frac{p}{q}=\frac{x+3}{x-3}$$, then what is the value of $$\frac{p^2+q^2}{p^2-q^2}$$ ?
87. PQRS is a square, M is the mid-point of PQ and N is a point on QR such that NR is two-third of QR. If the area of ΔMQN is $$48cm^2$$ , then what is the length (in cm) of PR ?
88. In the given figure. PQ = 30. RS = 24 and OM = 12. then what is the value of ON?
89. In the given figure, PQ is the diameter of the circle. What is the measure (in degrees) of ∠QSR?
90. In the given figure, PM is one-third of PQ and PN is one-third of PS. If the area of PMRN is 17 cm2, then what is the area $$(in cm^2)$$ of PQRS?
91. What is the simplified value of (1- sin A cos A)(sin A + cos A)?
92. What is the simplified value of $$\sqrt{\frac{1-sinA}{1+sinA}}$$ ?
93. What is the simplified value of $$\sqrt{\frac{1}{sin^2A}+\frac{1}{cos^2A}}$$ ?
94.
The bar chart given below shows the number of cars parked in a multi-level parking from 6 am to 6 pm on a given day.
What is the average number (approximately) of cars parked per hour from 6 am to 6 pm on the given day?
95. At what time the percentage change in number of parked cars is the maximum?
96. For how many hours the number of parked cars is less than the average on the given day?
97. If the charges of parking are Rs 50 per hour, then what is the total income (in Rs) from 6 am to 6 pm on the given day?
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What is the average number (approximately) of cars parked per hour from 6 am to 6 pm on the given day?
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