২২২৯১
If a's income is 25% less than of B, then how much percent is B's income more than that of A?
উত্তর
33%
২২২৯২
If there are 300calories in 100grams of certain food,how many calories in 30gram portion of that food?
উত্তর
90
সমাধান
in 100grams there are 300 calories
∴ in 30gram there are (300*30)/100 = 90 calories
ans: 90 calories
২২২৯৪
In vineyard there are 220 rows of vines.Each row is 192 metres long and plants are plant 4 metres apart. On average each plant produce 900kg of grapes a season. The amount of grape produce in a season closest to-
উত্তর
100000kg
২২২৯৫
the average of 10 numbers is 7. what will be the new average if each of the numbers is multiplied by 8?
উত্তর
56
২২২৯৬
A store is having 20% off sale.The normal price of shirt is 1250Tk. What is the price of the shirt after the 20% discount?
উত্তর
1000
সমাধান
price of shirt is 1250Tk.
discount on the original price = 1250*20/100 = 250 tk
after the discount price of shirt is = (1250 - 250)tk = 1000tk
ans: 1000 tk
২২২৯৭
The ratio of two numbers is 3: 4 and their sum is 420. The greater of the two numbers is
উত্তর
240
২২২৯৮
In school election ,with three candidates zara received 120votes.mamun receive 50vote and Humayura received 30votes.What percentage of total number of vote did Zara received?
উত্তর
60%
সমাধান
Given,
zara received 120votes.
mamun received 50vote
and Humayura received 30votes.
total votes = 120 + 50 + 30 = 200
percentage of total votes Zara received = (120*100)/200 = 60
ans: 60%
২২২৯৯
Find the least number of six digits which is exactly divisible by 15 , 21 and 28.
উত্তর
100380
২২৩০০
The bengal soap powder is packed in cube shaped cartons. A carton measure 10cm each side.The company decide to increase the edge of box 10%.How much does the volume increase?
উত্তর
331
সমাধান
Initial volume = 103 = 1000 cc
New edge = 10 + 10% of 10 = 10 + 1 = 11 cm
New volume = 113 = 1331 cc
Volume increament = 1331 - 1000 = 331 cc