1
GATE CE 2022 Set 1
MCQ (Single Correct Answer)
+1
-0.33

P invested Rs.5000 per month for 6 months of a year and Q invested Rs. x per month for 8 months of the year in a partnership business. The profit is shared in proportion to the total investment made in that year. If at the end of that investment year, Q receives $${4 \over 9}$$ of the total profit, what is the value of (in Rs.)?

A
2500
B
3000
C
4687
D
8437
2
GATE CE 2018 Set 2
MCQ (Single Correct Answer)
+1
-0.3
For non-negative integers, a, b, c, what would be the value of a + b + c if $$$\log \,a\, + \,\log \,b\, + \,\log \,c\, = \,0?$$$
A
3
B
1
C
0
D
-1
3
GATE CE 2018 Set 2
MCQ (Single Correct Answer)
+1
-0.3
A three-member committee has to be formed from a group of 9 people. How many such distinct committees can be formed?
A
27
B
72
C
81
D
84
4
GATE CE 2018 Set 2
MCQ (Single Correct Answer)
+1
-0.3
$$\underbrace {{\rm{a}}\,{\rm{ + }}\,{\rm{a}}\,{\rm{ + }}\,{\rm{a}}\,{\rm{ + }}\,.......\,{\rm{ + }}\,{\rm{a}}}_{{\rm{n}}\,{\rm{times}}} = {a^2}b$$ and $$\underbrace {b\,{\rm{ + }}\,b\,{\rm{ + }}\,b\,{\rm{ + }}\,.......\,{\rm{ + }}\,b}_{m\,\,{\rm{times}}} = a{b^2}$$, where a, b, n and m are natural numbers. What is the value of $$\left( {\underbrace {b\,{\rm{ + }}\,b\,{\rm{ + }}\,b\,{\rm{ + }}\,.......\,{\rm{ + }}\,b}_{n\,\,{\rm{times}}}} \right)\left( {\underbrace {a\,{\rm{ + }}\,a\,{\rm{ + }}\,a\,{\rm{ + }}\,.......\,{\rm{ + }}\,a}_{m\,\,{\rm{times}}}} \right)$$?
A
$$2{a^2}{b^2}$$
B
$${a^4}{b^4}$$
C
$$ab\left( {a\, + \,b} \right)$$
D
$${a^2}\, + \,{b^2}$$
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