Simplification question for IBPS, SBI, RBI, clerk, PO, UPSC, State-PSC, Railways, SSC

[Q] The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:
(a) 5900
(b) 2900
(c) 3900
(d) 4900

Solution

Answer    (c)
Explanation
----
Let the cost of a chair and that of a table be Rs. x and Rs. y respectively.

Then, 10x = 4y   or   y =	5	x.
	2

15x + 2y = 4000

15x + 2 x	5	x = 4000
	2

20x = 4000
x = 200.

So, y =		5	x 200		= 500.
		2

Hence, the cost of 12 chairs and 3 tables = 12x + 3y
    = Rs. (2400 + 1500)
    = Rs. 3900.

Simplification question for IBPS, SBI,Clerk, PO, RBI, clerk, Railways, SSC

[Q] Mohan has Rs. 720 in the denominations of 1-rupee coin, 2-rupee coin and 5-rupee coins. The number of coins of each denomination is equal. What is the total number of coins that he has ?
(a) 660
(b) 270
(c) 560
(d) 470

Solution

Answer    (b)
Explanation
----
Let number of coins of each denomination be x.
Then x + 2x + 5x =720
8x =720
x = 90.
Hence, total number of notes = 3x = (3 x 90) = 270.

Simplification question for clerk

[Q] 10 / 5 / 2 = ?
(a) 1
(b) 2
(c) 3
(d) 4

Solution

Answer    (a)
Explanation
----
10 / 5 / 2
= 10 / (5 x 2)
= 10 / 10
= 1 

Simplification question for IBPS, SBI,PO, RBI, clerk, Railways, SSC

[Q] b - [b -a -b - {a -b} + 2a]= ?
(a) 1
(b) 0
(c) 3
(d) 2

Solution

Answer    (b)
Explanation
----
b - [b -a -b - {a -b} + 2a]

= b - [b -a -b - a +b + 2a]

= b - [b]

= b - b

= 0

Simplification question for IBPS, SBI, RBI, clerk, PO, UPSC, State-PSC, Railways, SSC

[Q] 14+14+14+14=?
(a) 372 / 50
(b) 222 / 50
(c) 72 / 305
(d) 50 / 305

Solution

Answer    (c)
Explanation
----