Ques:- In 3.5 Kg rod , there is 74% silver. If it is alloyed with a 0.5 Kg rod, the % of silver goes p to 84%. The percent of silver in 0.5 Kg rod?
Recent Answer : Added by Munesh On 2022-08-14 16:29:31:
In 3500 g rod contains 74% of silver = 3500 * 74/100 = 2590 g
Then 3500 g + 500 g of rod contains 84% of silver
Let x be the silver contained in 500 g of silver
(2590/3500 * 100) + (x/500 * 100) = 84
74 + x/5 = 84
(370 + x) /5 = 84
370 + x = 420
x = 50
Then the percentage of silver contained in 500 g of rod = 50/500 *100 =10%
Ques:- Do you have a method or a strategy to measure the quality of your work?
Recent Answer : Added by DK BOSS On 2021-07-30 16:26:33:
Employee Performance Standards. Employee performance measurements can determine an employee’s compensation, employment status or opportunities for advancement.
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Ques:- What is the missing number in the series 2, 6, 12, 20, 30, ..?
A. 72
B. 42
C. 52
D. 62
E. 56
Recent Answer : Added by ANTONIS AJAY SOLOMON On 2022-10-11 16:07:08:
The answer is 42
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Ques:- The average temperature was 37C for Monday to Wednesday and 34C for Tuesday to Thursday . If the temperature on Thursday was 4/5 th of that of Monday,what was the temperature on Thursday?
Recent Answer : Added by Jade On 2022-09-22 16:41:17:
Substitute equation C into B:
(B) Tue + Wed = 102 – 0.8(Mon)
At this point I changed the values for clearer algebra:
Mon = x
Tue + Wed = y
Re-write equations A & B with new values:
(A) y = 111 – x
(B) y = 102 – 0.8x
Solve simultaneous equations:
111 – x = 102 – 0.8x
111 – 102 = x – 0.8x (Re-arraged)
9 = 0.2x
x = 45
Thus, Mon = 45C
Thu = 0.8(45)
Thu = 36C
So the answer is it was 36C on Thursday
Ques:- 28% of 450 + 45% of 280 = ?
Recent Answer : Added by Talib Mansuri On 2022-05-17 08:54:05:
252
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31yrs
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150 miles
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sorry this question is irrelevant.
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In 3500 g rod contains 74% of silver = 3500 * 74/100 = 2590 g
Then 3500 g + 500 g of rod contains 84% of silver
Let x be the silver contained in 500 g of silver
(2590/3500 * 100) + (x/500 * 100) = 84
74 + x/5 = 84
(370 + x) /5 = 84
370 + x = 420
x = 50
Then the percentage of silver contained in 500 g of rod = 50/500 *100 =10%