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Number System

Number System
Find the least value of 3x + 4y if x2y3 = 6.

6
10
3
7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

10

Number System
480% of 350 + 620% of 275 = ?

5385
2385
3385
4385

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385

Number System
Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number

None
24
32
18

ANSWER DOWNLOAD EXAMIANS APP

Number System
The cost of 87 pens and 29 pencils is `783. What is the cost of 90 pens and 30 pencils ?

Rs. 820
Rs. 800
Rs. 830
Rs. 810

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the price of a pen be 'x' and that of pencil be 'y' Then 87x + 29y = 783Multiplying eqn (i) by 30/29 we get (87x) x 30/29  + (29y) 30/29 = 783 x 30/29∴ 90x + 30y = 810

Number System
In how many different ways can the letters of word "SENTENCE" be arranged ?

3360
3260
2360
6460

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number of ways = 8!/3! 2! = 40320/12 = 3360

Number System
2536+4851—?=3450+313

3624
4567
6784
5243

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3624

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