197902. A seconds pendulum is a pendulum whose time period is
197903. A jug is filled the brim with water at 0°C. A piece of ice floats in it. The moment the ice melts.
197904. The rusting of metal iron in air needs both
197905. Acid rain is caused by
197906. Iodine test is used to detect
197907. Which of the following is used in pencils ?
197908. The branch of medicine involving synthetic chemical compounds is
197909. Who is the author of the book “Romancing With Life” ?
197910. A South Rajasthani tribe earning its living by song and dance is
197911. Hydrogen was discovered by
197912. The biggest delta in the world is the
197913. Absorption of water from cut ends of stems disproves the
197914. The loss of water in the form of water droplets is called
197915. “Vatsalya Mela” is annually organised in
197916. Who is the Director General of the BBC ?
197917. Who is Australia’s High Commissioner to India ?
197918. Who was elected as the President of India Football Federation ?
197919. Who took over as the Chairman of Tata Sons ?
197920. The area of the iron sheet required to prepare a cone 24 cm high with base radius 7 cm is (Take $$\pi = \frac{22}{7}$$)
197921. The least prime number is
197922. Find the least number which when divided by 12, 18, 36 and 45 leaves the remainder 8, 14, 32 and 41 respectively.
197923. An empty pool being filled with water at a constant rate takes 8 hours to fill 3/5 th of its capacity. How much more time will it take to finish filling the pool ?
197924. P can do a piece of work in 9 days. Q is 50% more efficient than P. The number of days it takes for Q to do the same piece of work is
197925. Sixteen men can complete a work in fifteen days, twenty-four children can do the same work in twenty days. In how many days will eight men and eight children, complete the same work ?
197926. What is a better investment, 4% stock at 120 or 3% stock at 80 ?
197927. 20% raise of price followed by a discount of 25% of the raised portion will
197928. The sum of the ages of two brothers, having a difference of 8 years between them, will double after 10 years. What is the ratio of the age of the younger brother to that of the elder brother ?
197929. On decreasing each side of an equilateral triangle by 2 cm, there is a decrease of 4√3 cm 2 in its area. The length of each side of the triangle is
197930. A rectangular tin sheet is 12 cm long and 5 cm broad. It is rolled along its length to form a cylinder by making the opposite edges Just to touch each other. Then the volume of the cylinder is
197931. A merchant advertises 10% off on the items bought from his store. The total discount got by a customer who bought a cooker worth 650, a heater worth 500 and a bag worth 65 is
197932. If $$2x+3y=\frac{5}{6} and $$xy=\frac{5}{6}$$ then the value of $$8x^{3}+27y^{3}$$ is
197933. If $$x^{4}+\frac{1}{x^{4}}=119,$$ then the value of $$x^{3}-$$ $$\frac{1}{x^{3}}$$ is
197934. The ratio of two numbers is 3 : 4 and their LCM is 180. The second number is
197935. Out of 30 teachers of a school, a teacher of age 60 years retired. In his place another teacher of age 30 years was appointed. As a result, the mean age of the teachers will
197936. Average age of A, B and C is 84 years. When D joins them the average age becomes 80 years. A new person, E, whose age is 4 years more than D, replaces A and the average of B, C, D and E becomes 78 years. What is the age of A ?
197937. By selling an article for Z 450, a man loses 10%. The gain or loss per cent if he sells it for 540 is
197938. A man loses 20 1/2% of his money and after spending 80% of the remainder, he is left with 159. How much did he have at first ?
197939. A gun is fired at a distance of 1.34 km from Geeta. She hears the sound after 4 seconds. The speed at which sound travels is
197940. If I walk at 5km/hr, I miss a train by 7 minutes. However, if I walk at 6 km/hr I reach the station 5 minutes before the departure of the train. The distance between my house and the station is
197941. The compound interest on =1,800 at 10% per annum for a certain period of time is 378. Find the time in years.
197942. The value of 204 × 197 is
197943. The value of $$((\sqrt[n]{x^2})^\frac{n}{2})^2$$ is
197944. $$(\sqrt{3})^{5}\times 9^{2}=3^{n}\times3\sqrt{3}$$ then find the value of n
197945. If $$p = 99$$, then the value of $$p (p^{2} + 3p + 3)$$ is
197946. $$sin^{6}θ + cos^{6} θ$$ is equal to
197947. If tan θ + cot θ = 2, 0 < 0
197948. The expression $$1- \frac{cos^2A}{1- sin A}$$
197949. The shadow of a tower standing on a level ground is found to be 40 metre longer when the suns altitude is 30° than when it is 60°. Find the length of the tower,
197950. The length of the shadow of a tower is 9 metres when the sun’s altitude is 30°. What is the height of the tower ?
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