RRB Group D Mock Test - 8 - RRB Group D / RPF Constable
100 Questions MCQ Test RRB (Group D) - Mock Tests & Previous Year Papers - RRB Group D Mock Test - 8
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How many squares are there in the following figure?
Detailed Solution for RRB Group D Mock Test - 8 - Question 14
The figure in question may be labelled as shown in the following figure:
There are four, three, two and one squares in the first, second, third and fourth rows (counting from bottom), respectively. Besides, there are four more squares, namely: DGQR, EHMO, FILN and RFQN. Hence, there are a total fourteen squares in the figure.
A rat runs 20' towards East and turns to right, runs 10' and turns to right, runs 9' and again turns to left, runs 5' and then turns to left, runs 12' and finally turns to left and runs 6'. Now, which direction is the rat facing ?
Consider the following statements regarding human blood : 1. Red blood cells are nucleated but white blood cells have no nucleus 2. Eosinophils are phagocytic 3. Lymphocytes enter damaged tissues and release histamines 4. Platelets contain enzymes Which of these statements is/are correct?
"By weaving threads of physics, chemistry and biology into a rich tapestry, this remarkable scientist provided a unifying molecular view of the world. He touted the wounderful properties of Vitamin C first as a cure of common cold and later as a preventive agent against cancer." One of science's major figures of all time referred to above is
Three vessels A, B and C of equal capacity are full with a mixture of water and alcohol in the ratio 1:2, 2:3 and 3:4 respectively. The contents of all three vessels or emptied into a single large vessel. The ratio of quantity of water to quantity of alcohol in this vessel is
Shekhar started a business investing Rs. 25,000 in 1999. In 2000, he invested an additional amount of Rs. 10,000 and Rajeev joined him with an amount of Rs. 35,000. In 2001, Shekhar invested another additional amount of Rs. 10,000 and Jatin joined them with an amount of Rs. 35,000. What will be Rajeev's share in the profit of Rs. 1,50,000 earned at the end of 3 years from the start of the business in 1999?
2 Pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is
Detailed Solution for RRB Group D Mock Test - 8 - Question 65
Work done by the waste pipe in 1 minute = 1/15 - ( 1/20 + 1/24 )
= ( 1/15 - 11/120 )
= - 1/40
[-ve sign means emptying]
∴ Volume of 1/40 part = 3 gallons
Volume of whole = (3 x 40) gallons = 120 gallons
A railway passenger counts the telegraph posts on the line as he passes them. If they are 50 m apart from each other and the train is running at the rate of 48 km/hr, how many posts will he pass per minute?
In a queue, Amrita is 10th from the front while Mukul is 25th from behind and Mamta is just in the middle of the two. If there be 50 persons in the queue, what position does Mamta occupy from the front ?
Detailed Solution for RRB Group D Mock Test - 8 - Question 69
Number of persons between Amrita and Mukul = 50 - (10 + 25) = 15. Since Mamta lies in middle of these 15 persons So Mamta`s position is 8th from Amrita i.e. 18th from the front.