Start learning 50% faster. Sign in now
Curved surface area of the cylinder = 2πrh From I. Area of the base is 154 cm² ∴πr² = 154 = 22/7× r² = 154 r² = 7 × 7 r = 7 cm But we can’t find the height of the cylinder. Hence I alone is not sufficient. From II. Volume of the cylinder = πr²h = 1540 So, there are two variables r and h. Hence II alone is not sufficient. From I and II. Volume of the cylinder = πr²h. = 22/7× 7 × 7 × h = 1540 ∴ h = 10 cm ∴ Curved surface area of the cylinder = 2πrh = 2 ×22/7× 7 × 10 = 440 cm² Thus, both the statements together are required to answer the question.
Statements:
No cup is plate.
Only a few plate is saucer.
Some saucer is spoon.
All spoon is juicer.
Conclu...
In each question below are given two statements followed by two conclusions numbered I and II. You have to take the two given statements to be true eve...
Statement:
Only a few clock are timer
Only timer is needle
No clock is watch.
Conclusion:
Statements: No pen is a pencil.
All pencil are book.
Conclusions: I. Some book ar...
Statements:
No red is white.
All white are orange.
Some Orange are blue.
Conclusions:
I. No red is blue.
II. N...
Statements: All circle are bangle.
Some bangle are square
Conclusions I. Some circle a...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
Statements:
No book is a pencil.
All books are boards.
All boards are dusters.
No eraser is a duster.
Statement
Only a few A is B
No B is C
Some C is D
Conclusion
I) All A can never be C
II) All B c...