Percentage

126. A ball pen factory decided to reduce its production by 10% over that of previous month for next 3 months starting from February 1994. In January 1994, it produced 3000 ball pens. How many ball pens were produced in March 1994?

• ক. 2187
• খ. 2400
• গ. 2700
• ঘ. 2430

127. The current birth rate per thousand is 32, where as corresponding death rate is 11 per thousand. The net growth in terms of population increase in percent is given by--

• ক. 21%
• খ. 2.1%
• গ. 0.021%
• ঘ. 0.0021%

128. A reduction of 21% in the price of wheat enables a person to buy 10.5 kg more for Tk.100. What is the reduced price per kg?

• ক. 2.30
• খ. 2.50
• গ. 2
• ঘ. 2.25

129. Salaries of A, B and C are in the ratio 1 : 2 : 3. Salary of B and C togather is Tk.6000. By what percent is salary of C more than that of A?

• ক. 100
• খ. 200
• গ. 300
• ঘ. 400

130. If a man’s salary is 20% more than that of his son, how many percent is the son’s salary if compared to the salary of his father?

• ক. 75
• খ. 80
• গ. 83
• ঘ. 85

131. The number of marbles in Amin’s collection is 80% of the number in Rahim’s collection. If Rahim has 80 more marbles than Amin, how many marbles do they have altogether?

• ক. 720
• খ. 120
• গ. 135
• ঘ. 400

132. If 35% of a number is 12 less than 50% of that number, then the number is:

• ক. 40
• খ. 50
• গ. 60
• ঘ. 80

133. The market value of a 10.5% stock, in which an income of Tk. 756 is devided by investing Tk. 900, brokerage being 1/4% is:

• ক. Tk. 108.25
• খ. Tk. 112.20
• গ. Tk. 124.75
• ঘ. Tk. 125.25

134. A student multiplied a number by 3/5 insted of 5/3. What is the percentage of error in the calculation?

• ক. 34%
• খ. 44%
• গ. 54%
• ঘ. 64%

135. Every 3 minutes, 4 liters of water are poured into a 2,000-liter tank. After 2 hours, what percent of the tank is full?

• ক. 0.4%
• খ. 4%
• গ. 8%
• ঘ. 12%

136. 0.01 is what percent of 0.1?

• ক. 1/100
• খ. 1/10
• গ. 10
• ঘ. 100

137. The price of tea being increased by 20%, a man reduces his consumption by 20%. By how much percent will his expenses for tea be decreased?

• ক. 2%
• খ. 4%
• গ. 6%
• ঘ. 8%