Percentage

101. The price of rice has increased by 60%. In order to restore the original price, the new price must be reduced by--

• ক. 40%
• খ. 45%
• গ. 100/3%
• ঘ. 75/2%

102. 72% of the students of a certain class took Biology and 44% took mathematics. If each students took Biology or Mathematics or both. If 40 students took both Biology and Mathematics then the total number of students in the class was---

• ক. 250
• খ. 320
• গ. 200
• ঘ. 240

103. The length and breadth of a square are increased by 30% and 20% respectively. The area of the rectangle. So formed exceeds the area of the square by--

• ক. 50%
• খ. 56%
• গ. 20%
• ঘ. 36%

104. Length of a rectangle is increased by 60%. By what percent would the width have to be decreased to maintain the same area?

• ক. 75%
• খ. 55%
• গ. 75/2%
• ঘ. 60%

105. For a sphere of radius 10 cms, the numerical value of the surface area is how many percent of the numerical value of its volume?

• ক. 30%
• খ. 45%
• গ. 24%
• ঘ. 26.5%

106. Price of sugar increases by 32%. A family reduces its consumption so that the expenditure of the sugar is up by 10% only. If the total consumption of sugar before the price rise was 10 kg per month at present(in kg).

• ক. 35/4
• খ. 9
• গ. 25/3
• ঘ. 17/2

107. On increasing the price of TV sets by 30, their sale decreased by 20%. What is the effect on the revenue receipts of the shop?

• ক. 4% increase
• খ. 4% decrease
• গ. 8% increase
• ঘ. 8% decrease

108. A house-owner was having his house painted. He was advised that he would require 25 kg of paint. Allowing for 15% wastage and assuming that the paint is available in 2 kg cans. What would be the cost of paint purchased, if one can cost Tk.16?

• ক. 160
• খ. 360
• গ. 240
• ঘ. 180

109. A reduction of 12.5% in the price of dining table bought down its price to Tk.4375. The original price (in Taka) of the table was:

• ক. 5200
• খ. 5000
• গ. 6000
• ঘ. 5400

110. A man spends 35% of his income on house rent, 75% of the remaining on other items. What percentage of income does he save?

• ক. 48.75
• খ. 35.55
• গ. 16.25
• ঘ. 34.50

111. Alamgir spends 30% of his income on scooter petrol. 1/4 of the remaining on house rent and the balance on food. If he spends Tk.300 on petrol then what is the expenditure on house rent?

• ক. 675
• খ. 175
• গ. 585
• ঘ. 950

112. The price of jute has been reduced by 20%. If the reduced price is Tk.800 per quintal, the original price per quintal was--

• ক. 960
• খ. 1000
• গ. 880
• ঘ. 950

113. Kamal has some apples.He sold 40% more than he ate. If he sold 70 apples, how many did he eat?

• ক. 40
• খ. 30
• গ. 35
• ঘ. 50

114. In an examination, 1100 boys and 900 girls appeared. 50% of the boys and 40% of the girls passed the examination. The percentage of candidates failed is--

• ক. 54.5
• খ. 59.2
• গ. 45
• ঘ. 45.5

115. Sumaiya secured 50% marks in Bangla, 60% in English and 70% in math as well as science. What were her total marks if the maximum marks obtainable in each of these 4 subjects was 50?

• ক. 250
• খ. 150
• গ. 125
• ঘ. 120

116. If x% of a is the same as y% of b. Then z% of b =?

• ক. yz/x% of a
• খ. xy/z% of a
• গ. xz/y% of a
• ঘ. All of these

117. A's marks in Biology are 20 less than 25% of the total marks obtained by him in Biology, Math and Drawing. If his marks in Drawing be 50, what are his marks in Math?

• ক. 50
• খ. 4
• গ. 45
• ঘ. cannot be calculated

118. An increase of Tk.60 in the monthly salary of Madan made it 50% of the monthly salary of Kamal. What is Madan's present monthly salary?

• ক. 300
• খ. 180
• গ. 240
• ঘ. cannot be calculated

119. From a container having pure milk 20% replaced by water and the pricess is repeated thrice. At the end of the third operation the milk is--

• ক. 51.2
• খ. 58.8
• গ. 40
• ঘ. 50

120. In an examination there are 3 papers of Mathematics of 100 marks each. A boy secures 60% in the first paper and 70% in the second paper. In order to secure 70% in the aggregate the percentage of marks he should secure in third paper will be--

• ক. 75
• খ. 70
• গ. 80
• ঘ. 90

121. In an examination A got 10% marks less than B. B got 25% marks more than C and c got 20% less than D. If A got 360 marks out of 500, the percentage of marks obtained by D was--

• ক. 80
• খ. 85
• গ. 70
• ঘ. 75

122. In an examination 35% of total students failed in Bangla, 45% failed in English and 20% in both. The percentage of those who passed in both the subject is--

• ক. 30
• খ. 40
• গ. 10
• ঘ. 20

123. Zakir spends 75% of his income. His income is increased by 20% and he increased his expenditure by 10%. His savings are increased by--

• ক. 75/2
• খ. 50
• গ. 10
• ঘ. 25

124. Anils height is 20% less then Deepak's. How much is Deepak's height more than Anil's?

• ক. 20
• খ. 25
• গ. 50/3
• ঘ. 18

125. The value of a machine depreciates at the rate of 10% every year. It was purchased 3 years ago. If its present value is Tk.8748 its purchases price was--

• ক. 12000
• খ. 12500
• গ. 10000
• ঘ. 11370