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#quadratic #equations
I. 3x²+ 8x + 4 =0
II. 4y²− 19y + 12 =0
I. x² - 365 = 364
II. y - √324 = √81
I. 3 + 4 = √𝑥
√𝑥 + √𝑥
II. y³ – (7)⁷/² =0
√𝑦
I. x²+ 11x + 30 =0
II. y²+ 7y + 12 =0
I. x²+ x – 12 =0
II. y² – 5y + 6 =0
I. 5x² – 18x + 9 =0
II. 20y² – 13y + 2 =0
@quant_material
A and B together can complete a work in 3 days. They start together but after 2 days B leaves the work. If the work is completed after 2 more days then B alone can do the work in?
A. 5 days
B. 7 days
C. 9 days
D. 13 days
E. None of these
Working together A and B can complete a given task in 24 days. If the efficiencies of A and B are in the ratio of 3:2 then in how many days can B alone complete half of the task?
A. 10
B. 18
C. 30
D. 20
E. 15
If the diagonal of a square of perimeter 60cm is equal to the length of a rectangle (R) and R’s breadth is 10√2cm, what is the R’s area? (in 𝑐𝑚²)
A. 300
B. 600
C. 150
D. 150√2
E. 300√3
Bhim invested 28% of his monthly salary of ₹40000 in mutual funds. He spent the remaining salary in the ratio of 1:4:3 towards house rent, groceries and medical expenses respectively. What was the difference between the amount invested in annual funds and that spent towards groceries? (in ₹)
A. 3200
B. 4000
C. 2400
D. 2800
E. 3600
A and B started a business with initial investments in the ratio of 3:1. At the end of 8 months from the start of business, A left. If B received ₹8000 as his share of annual profit, what was the annual profit?(in ₹)
A. 25000
B. 24000
C. 32000
D. 20000
E. 30000
When a two digit number (X) is reversed, the number so formed is 63 more than X. If the sum of digits of X is 11 then what is the value of ‘X+21?
A. 48
B. 44
C. 40
D. 50
E. 52
4/11 x 3/7 x 5/9 x 28413 = ?
A. 2412
B. 2435
C. 2460
D. 2482
E. 2512
(93462 + 13498 - 26000) x 3/8
= ?
A. 30630
B. 30360
C. 36300
D. 36030
E. None of these
0.25 𝑥 12 ÷ 1.25 = ?
3.8 + 5.5 + 2.7
A. 0.2
B. 0.4
C. 0.6
D. 0.5
E. None of these
0.5% 0f 12300 + 0.25% of 45600 = ?
A. 175
B. 174.5
C. 175.5
D. 176.5
E. None of these
(185 ÷ 37) × 16 + 21² = ? – (16 × 23)
(a) 899
(b) 829
(c) 869
(d) 889
(e) None of these
? – 13² = 36 × 162 ÷ 24 + 16²
(a) 688
(b) 748
(c) 668
(d) 628
(e) None of these
√625 + √961 – (16 × 7) = ? – (17 × 12)
(a) 138
(b) 148
(c) 168
(d) 188
(e) None of these
872.24 + 62.4 + 721.4 + 622.7 = ?
(a) 2278.74
(b) 2348.84
(c) 2456.84
(d) 2448.74
(e) None of these
√2601 + 16² + (16 × 24) = 5/6 of ?
(a) 729.2
(b) 829.2
(c) 629.2
(d) 718.2
(e) None of these
71.42% of 602 + 66.66% of 255 = ? – 16.66% of 552
(a) 692
(b) 612
(c) 912
(d) 712
(e) None of these
(576 ÷ 12) – (12 × 16) + ∛125 = ?
(a) – 141
(b) – 129
(c) – 139
(d) – 111
(e) None of these
19 × √324 = ? × 144 × √361
(a) 1/8
(b) 1/12
(c) 1/5
(d) 1/6
(e) None of these
