Quantitative Aptitude Quiz | 13-July-2020 ||Answer key with Solution|
Useful for BANK. SSC, RAILWAY, UPSC, PSC, WBCS
1. Sol. (A)
5M = 9W
3M + 6W = 3M + (10/3) M = (19/3) M
According to the question/प्रश्नानुसार,
5 × (19/3) = 19 × D
D = (5/3) days/दिन
2. Sol. (C)
Let the present age of girl's brother be x years.
माना लड़की के à¤ाई की वर्तमान आयु x वर्ष है ।
Then, Present age of girl/तो, लड़की की वर्तमान आयु = 2x
and present age of father/और पिता की वर्तमान आयु = 4x
(x + 26) = 1/2(4x + 26)
x + 26 = 2x +13
x = 13
Present age of girl/लड़की की वर्तमान आयु = 26 years/वर्ष
3. Sol. (C)
x + y = 90 … (I)
2x + 4y = 248
x + 2y = 124 … (II)
From (I) and (II), we get/(I) और (II) से हम प्राप्त करते हैं,
y = 34
4. Sol. (D)
5. Sol. (B)
Let first number be 3x and second number be 2x.
According to the question/प्रश्नानुसार,
6 (2x) 2 = (3x) 2+ 540
24x 2 = 9x 2 + 540
24x 2 – 9x 2 = 540
16x 2 = 540
x = 36, x = 6
Second number/दूसरी संख्या = 12
6. Correct Ans:86439.49
Explanation:
Given Question is 145 / 296 + 295 * 294 - 291
when we apply BODMAS RULE to the above question, we get (Bracket Of Division) ( 145 / 296 ) + 295 * 294 - 291 = 0.48+295*294-291 = 86439.49
7. Solution:
? = 81.25+2.1
= 83.35
8. Solution:
350 × ?/100 × 1/50 = 343
? = 4900
9. Solution:
1/2×3842+15/100× ?=2449
? =(528×100)/15
? =3520
10. Solution:
?=448.8/24
?=18.7
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