২৩০৮১
Total payroll expense of a certain business in year Y was TK. 84,000; which was 20% more than in year X. What was the total payroll expense (in Taka) in year X?
উত্তর
70,000
সমাধান
Let the total payroll expense in year X be X TK.
Then, X + 20% of X = 84000
or, X + 0.2X = 84000
or, 1.2X = 84000
or, X = 84000/1.2 = 70000 TK
২৩০৮২
Reza earns TK.8.50 per hour on days than Sundays and twice that rate on Fridays, Last week he worked a total of 40 hours , including 8 hours on Friday. What was his total earning, in Taka , for that week?
উত্তর
408
সমাধান
Friday Earning = 8 * 8.50 * 2 = 136Others Day Earning = (40-8) * 8.50 = 32 * 8.5 = 272Total Earning = 136 + 272 = 408 (Ans)
২৩০৮৩
Choose the pair which is dissimilar to others in the following.
উত্তর
Student-Teacher
সমাধান
Patient stay in hospital for treatment Culprit stay in prison for punishment Bird stays in nest But student goes to teacher for education not to stay, so answer will be option 1
২৩০৮৪
If 'Eye' is related to 'Man', then in the same way 'Window' is related to -
উত্তর
Room
সমাধান
Eye is related to man. Man sees the world through eye. In the same way anyone can see a room through opening the window.
২৩০৮৫
If 3 is added to both numerator and denominator of a fraction , it becomes 5/7. If 9 is subtracted from both numerator and denominator, it becomes 1/3. What is the fraction?
উত্তর
12/18
সমাধান
Let, numerator = x, denominator = yfirst condition, x+3y+3 = 57 or, 7x- 5y = -6second condition, x-9y-9 = 13 or, 3x - y = 18Solving the above two equation, we get x = 12 and y = 18So, the required fraction is = 1218 (Ans)
২৩০৮৯
If PERFECT coded as RGTHGEV, how is BRWON written in that code?
উত্তর
DTYQP
সমাধান
PERFECT কে RGTHGEV রূপে কোড করা হয়েছে। এক্ষেত্রে ১টা ALPHABET পর পর কোড হিসেবে লেখা হয়েছে। তাই BRWON হবে DTYQP
২৩০৯০
The length of a rectangle is 6 cm , and its perimeter is 16 cm. What is the area of the rectangle is square centimeters?
উত্তর
12
সমাধান
We know, 2(length + width) = perimeter
or, 2×6 + 2×width = 16
or, 2×width = 16 - 12
or, width = 4/2 = 2 cm
So, area of the rectangle = 6×2 = 12 cm2