बहुपद - L15 | बहुपद |कुछ अन्य सर्वसमिकायें |NCERT प्रश्नावली 2.5 | CLASS 9 गणित | Amit Sir | 6 PM

बहुपद|बहुपदों के प्रकार|बहुपद के शून्यक|NCERT प्रश्नावली 2 .1|सारांश

Previous Class Revision|NCERT प्रश्नावली 7.5 का हल भाग-2|सारांश

The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21,17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.

How many such 6s are there in the following number series, each of which is immediately preceded by 1 or 5 and immediately followed by 3 or 9 ? 2 6 3 7 5 6 4 2 9 6 1 3 4 1 6 3 9 15 6 9 2 3 1 6 5 4 3 2 1 9 6 7 1 6 3 1) None 2) One 3) Two 4) Three 5) None of these

study the following information carefully and answer the questions given below it. An exhibition is open for pubic since 9 am till 3 pm and again since 4 pm till 10 pm in a day. There are 12 batches of 1 hour each. The entry ticket bears a pass code made up of seven words, which changes every hour following a particular rule. The pass codes for 4 pm to 10 pm are same as those for respective hours during 9 am to 3 pm i.e., the pass code for 4 pm to 5 pm is same as that of 9 am to 10 am and so on. Following is an illustration of the code and steps of rearrangement for subsequent clock hours. First batch : 9 am to 10 am (4 pm to 5 pm) Pass code : dig more and you will find water Second batch : 10 am to 11 am (5 pm to 6 pm) Pass code : and dig find you water will more Third batch : 11 am to 12 noon (6 pm to 7 pm) Pass code : find and will you more water dig and so on. If the pass code for 5 pm to 6 pm is 'out in above over the field end', what will be the pass code for 1 pm to 2 pm ?