Nandinis house is

Nandini’s house is 9/10 km from her school. She walked some distance and then took a bus for 1/2 km to reach the school. How far did she walk?

A house subtends a right angle at the window of an opposite house and the angle of elevation of the window for the bottom of the first house is 60^@ If the distance between the two houses be 6m then the height of the first house is

Alka, Neelam, Anju and Chander live in houses in a lane where the houses are numbered as on a number line . The house numbers are as follows : Alka : - 9, Neelam : 6, Anju : -12, Chander : -5. If there is a house numbered '0' also, find : a. How many houses are there between Alka's house and Neelam's house ? b. How many houses are there between Anju's and Chander's house ?

Assertion (A) Green house effect was observed in houses used to grow plants and these are made of green glass. Reason (R) Green house name has been given because glass houses are made of green glass.

Green house gasses like CO_(2), CH_(4),CFC, N_(2)O and house (bromine) are

Three houses are available in a locality . Three persons apply for the houses . Each applies for one house without consulting others . The probability that all three apply for same house is

The height of a light house is 40 m. The angle of depression of a ship from the top of the light house is 60^(@) . Find the distance of ship from the light house.

Green house effect is

Which is a green house gas ?

Green house effect is