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प्र: Sixty men can stitch 150 shirts in 30 days working 8 hours a day. In how many days can 35 men stitch 200 shirts working 6 hours a day ? 2060 0

उत्तर : 3. "91.5"
व्याख्या :
Answer: C) 91.5 Explanation: We have M1 D1 H1 / W1 = M2 D2 H2 / W2 (Variation rule)(60 x 30 x 8)/ 150 = (35 x D2 x 6) / 200 D2 = (60 x 30 x 8 x 200) / (150 x 35 x 6) => D2 = 91.42 days =~ 91.5 days.

प्र: Pointing to a photograph, a man said, "I have no brother or sister but that man’s father is my father’s son." Whose photograph was it? 2058 0

उत्तर : 3. "His son's"
व्याख्या :
Answer: C) His son's Explanation: Since the narrator has no brother, his father’s son is he himself. So, the man who is talking is the father of the man in the photograph. Thus, the man in the photograph is his son.

प्र: 70000 a year is how much an hour? 2058 0

उत्तर : 2. "8"
व्याख्या :
Answer: B) 8 Explanation: Given for year = 70000 => 365 days = 70000 => 365 x 24 hours = 70000 => 1 hour = ? 70000/365x24 = 7.990 = 8

प्र: What percent of a day is 3 hours? 2057 0

उत्तर : 2. "12.5%"
व्याख्या :
Answer: B) 12.5% Explanation: Let p% of a day is 3 hrs. We know that a day has 24 hrs. => p x 24/100 = 3 => p = 300/24 => p = 12.5% Hence, 3 hrs is 12.5% of a day.

प्र: Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? 2056 0

उत्तर : 2. "2k1k2/k1+k2"
व्याख्या :
Answer: B) 2k1k2/k1+k2 Explanation: We know that, The equivalent K = L1 + L2L1K1+L2K2 where L1 & L2 are plate1 & Plate2 thicknesses, K1 & K2 are coefficient thermal conductivity of plate1 & Plate2 respectively. But here L1 = L2 = L (say) Then K = L+L/(L/K1 + L/K2) = 2K1K2K1+K2

प्र: 3 is what percent of 5? 2056 0

उत्तर : 2. "60%"
व्याख्या :
Answer: B) 60% Explanation: Here it is asked that 3 is what percent of 5 Let 3 is K percent of 5. => K x 5/100 = 3 => K = 300/5 = 60 Hence, 3 is 60% of 5.

प्र: There are 41 students in a class, number of girls is one more than number of guys. we need to form a team of four students. all four in the team cannot be from same gender. number of girls and guys in the team should NOT be equal. How many ways can such a team be made ? 2056 0

उत्तर : 2. "50540"
व्याख्या :
Answer: B) 50540 Explanation: Given G + B= 41 and B = G-1 Hence, G = 21 and B = 20Now we have 2 options, 1G and 3M (or) 3G and 1M(2G and 2M or 0G and 4M or 4G and oM are not allowed), Total : C121×C320+C321×C120= 50540 ways.

प्र: K is 4 times as fast as L and working together, they can complete a work in 24 days. In how many days can L alone complete the work ? 2054 0

उत्तर : 1. "30 days"
व्याख्या :
Answer: A) 30 days Explanation: Given K=4L -->K+L = 4L+L = 5L These 5L people can complete the work in 24 days, which means L alone can do the work in (24 x 5)=120 days. Hence, K alone can do the work in 120/4= 30 days.

प्र: Sixty men can stitch 150 shirts in 30 days working 8 hours a day. In how many days can 35 men stitch 200 shirts working 6 hours a day ? 2060 05b5cc6dce4d2b4197774e9c9

उत्तर : 3. "91.5" व्याख्या :Answer: C) 91.5 Explanation: We have M1 D1 H1 / W1 = M2 D2 H2 / W2 (Variation rule)(60 x 30 x 8)/ 150 = (35 x D2 x 6) / 200 D2 = (60 x 30 x 8 x 200) / (150 x 35 x 6) => D2 = 91.42 days =~ 91.5 days.

प्र: Pointing to a photograph, a man said, "I have no brother or sister but that man’s father is my father’s son." Whose photograph was it? 2058 05b5cc76ae4d2b4197774fe5b

उत्तर : 3. "His son's" व्याख्या :Answer: C) His son's Explanation: Since the narrator has no brother, his father’s son is he himself. So, the man who is talking is the father of the man in the photograph. Thus, the man in the photograph is his son.

प्र: 70000 a year is how much an hour? 2058 05b5cc626e4d2b4197774b886

उत्तर : 2. "8" व्याख्या :Answer: B) 8 Explanation: Given for year = 70000 => 365 days = 70000 => 365 x 24 hours = 70000 => 1 hour = ? 70000/365x24 = 7.990 = 8

प्र: What percent of a day is 3 hours? 2057 05b5cc69ae4d2b4197774c778

उत्तर : 2. "12.5%" व्याख्या :Answer: B) 12.5% Explanation: Let p% of a day is 3 hrs. We know that a day has 24 hrs. => p x 24/100 = 3 => p = 300/24 => p = 12.5% Hence, 3 hrs is 12.5% of a day.

प्र: Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? 2056 05b5cc6bfe4d2b4197774d9e7

प्र: 3 is what percent of 5? 2056 05b5cc64ae4d2b4197774bc0c

उत्तर : 2. "60%" व्याख्या :Answer: B) 60% Explanation: Here it is asked that 3 is what percent of 5 Let 3 is K percent of 5. => K x 5/100 = 3 => K = 300/5 = 60 Hence, 3 is 60% of 5.

उत्तर : 2. "50540" व्याख्या :Answer: B) 50540 Explanation: Given G + B= 41 and B = G-1 Hence, G = 21 and B = 20Now we have 2 options, 1G and 3M (or) 3G and 1M(2G and 2M or 0G and 4M or 4G and oM are not allowed), Total : C121×C320+C321×C120= 50540 ways.

प्र: K is 4 times as fast as L and working together, they can complete a work in 24 days. In how many days can L alone complete the work ? 2054 05b5cc774e4d2b4197775003e

उत्तर : 1. "30 days" व्याख्या :Answer: A) 30 days Explanation: Given K=4L -->K+L = 4L+L = 5L These 5L people can complete the work in 24 days, which means L alone can do the work in (24 x 5)=120 days. Hence, K alone can do the work in 120/4= 30 days.

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प्र: Sixty men can stitch 150 shirts in 30 days working 8 hours a day. In how many days can 35 men stitch 200 shirts working 6 hours a day ? 2060 0

उत्तर : 3. "91.5"
व्याख्या :
Answer: C) 91.5 Explanation: We have M1 D1 H1 / W1 = M2 D2 H2 / W2 (Variation rule)(60 x 30 x 8)/ 150 = (35 x D2 x 6) / 200 D2 = (60 x 30 x 8 x 200) / (150 x 35 x 6) => D2 = 91.42 days =~ 91.5 days.

प्र: Pointing to a photograph, a man said, "I have no brother or sister but that man’s father is my father’s son." Whose photograph was it? 2058 0

उत्तर : 3. "His son's"
व्याख्या :
Answer: C) His son's Explanation: Since the narrator has no brother, his father’s son is he himself. So, the man who is talking is the father of the man in the photograph. Thus, the man in the photograph is his son.

प्र: 70000 a year is how much an hour? 2058 0

उत्तर : 2. "8"
व्याख्या :
Answer: B) 8 Explanation: Given for year = 70000 => 365 days = 70000 => 365 x 24 hours = 70000 => 1 hour = ? 70000/365x24 = 7.990 = 8

प्र: What percent of a day is 3 hours? 2057 0

उत्तर : 2. "12.5%"
व्याख्या :
Answer: B) 12.5% Explanation: Let p% of a day is 3 hrs. We know that a day has 24 hrs. => p x 24/100 = 3 => p = 300/24 => p = 12.5% Hence, 3 hrs is 12.5% of a day.

प्र: Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? 2056 0

प्र: 3 is what percent of 5? 2056 0

उत्तर : 2. "60%"
व्याख्या :
Answer: B) 60% Explanation: Here it is asked that 3 is what percent of 5 Let 3 is K percent of 5. => K x 5/100 = 3 => K = 300/5 = 60 Hence, 3 is 60% of 5.

उत्तर : 2. "50540"
व्याख्या :
Answer: B) 50540 Explanation: Given G + B= 41 and B = G-1 Hence, G = 21 and B = 20Now we have 2 options, 1G and 3M (or) 3G and 1M(2G and 2M or 0G and 4M or 4G and oM are not allowed), Total : C121×C320+C321×C120= 50540 ways.

प्र: K is 4 times as fast as L and working together, they can complete a work in 24 days. In how many days can L alone complete the work ? 2054 0

उत्तर : 1. "30 days"
व्याख्या :
Answer: A) 30 days Explanation: Given K=4L -->K+L = 4L+L = 5L These 5L people can complete the work in 24 days, which means L alone can do the work in (24 x 5)=120 days. Hence, K alone can do the work in 120/4= 30 days.