A. Rs. 385
B. Rs. 390
C. Rs. 395
D. Rs. 400
Explanation:
: C.P = Rs. X
425 – X = X – 355 (or )
2X = 780 or X= 390
A. 35
B. 37
C. 42
D. 30
Explanation:
The number of liters in each can = HCF of 80, 144 and 368 = 16 liters.
Number of cans of Maaza = 80/16 = 5
Number of cans of Pepsi = 144/16 = 9
Number of cans of Sprite = 368/16 = 23
The total number of cans required = 5 + 9 + 23 = 37 cans.
A. 14m
B. 18m
C. 4m
D. None of these
Explanation:
Let the breadth be x metres , then it’s length = 3x metres
=>3x × x =12
=> x2= 4
=> x =2 l=6m, b =2m
=> Perimeter = 2(6+2)m = 16m
A. Rs. 1883.78
B. Rs. 2380
C. Rs. 3690
D. Rs. 3864
Explanation:
Kamal : Sameer = (9000 * 12) : (8000 * 7)
= 108:56 = 27:14
Sameer’s = 6970 * 14/41 = Rs. 2380.
A. 3 ml
B. 4 ml
C. 5 ml
D. 6 ml
Explanation:
Alcohol in 9 ml lotion = (50/100 × 9)ml = 4.5ml
Water in it = (9 – 4.5)ml = 4.5ml
Let x ml of water be added to it, then 4.5/9+x × 100 = 30
=> 4.5/9+x = 30/100 = 3/10
=> 3(9+x) = 45 => 27 + 3x = 45
=> 3x = 18
=> x = 6
Water to be added = 6 ml
A. 40
B. 400
C. 5040
D. 2520