A tank is 25m long 12m wide and 6m deep. The cost of plastering its walls and bo

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Aptitude ‣ Area See What Others Are Saying!

Question
A tank is 25m long 12m wide and 6m deep. The cost of plastering its walls and bottom at 75 paise per sq m is
Options
A. Rs. 258
B. Rs. 358
C. Rs. 458
D. Rs. 558

Correct Answer

Rs. 558

Explanation

Area to be plastered = $[2 (l + b) � h] + (l � b)$

= $[2 (25 + 12) � 6] + (25 � 12) = 744 s q . m$

Cost of plastering = $744 � \frac{75}{100} = R s . 558$

More questions

1.
Aarti can do a piece of work in 6 days. In how many days will she complete three time of work of same type?
Options
A. 18 days
B. 21 days
C. 3 days
D. 6 days

4.
Let A = {1, 2, {3, 4}, 5}. Which of the following statements is true?
Options
A. {3, 4} ? A
B. {3, 4} ? A
C. 1 ? A
D. {1, 2, 5} ? A

5.
Two vessels A and B contains milk and water mixed in the ratio 5 : 3 and 2 : 3. When these mixtures are mixed to form a new mixture containing half milk and half water, they must be taken in the ratio ?
Options
A. 2 : 5
B. 3 : 5
C. 4 : 5
D. 7 : 3

7.
A tree is 12 m tall and casts an an 8 m long shadow. At the same time, a flag pole caste a 100 m long shadow. How long is the flag pole?
Options
A. 150 m
B. 200 m
C. 125 m
D. 115 m

9. A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
Options
A. Rs. 35
B. Rs. 245
C. Rs. 350
D. Cannot be determined
E. None of these

10.
If the hands of a clock coincide in every 65 minutes (true time), in 24 hours the clock will gain:
Options
A. 10 10 minutes. 143
B. 9 12 minutes. 143
C. 11 12 minutes. 143
D. 12 10 minutes. 143

Comments

More in Aptitude: